From dcbe28f1aa2b48313d82b989dcd263cc5936b9f1 Mon Sep 17 00:00:00 2001 From: Polina Date: Thu, 2 Jul 2026 20:06:11 +0000 Subject: [PATCH] =?UTF-8?q?=D0=97=D0=B0=D0=B3=D1=80=D1=83=D0=B7=D0=B8?= =?UTF-8?q?=D1=82=D1=8C=20=D1=84=D0=B0=D0=B9=D0=BB=D1=8B=20=D0=B2=20=C2=AB?= =?UTF-8?q?venv/Lib/site-packages/pydantic=C2=BB?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- venv/Lib/site-packages/pydantic/main.py | 1838 +++++++++++++++++++ venv/Lib/site-packages/pydantic/mypy.py | 1412 ++++++++++++++ venv/Lib/site-packages/pydantic/networks.py | 1332 ++++++++++++++ venv/Lib/site-packages/pydantic/parse.py | 5 + venv/Lib/site-packages/pydantic/py.typed | Bin 0 -> 1024 bytes 5 files changed, 4587 insertions(+) create mode 100644 venv/Lib/site-packages/pydantic/main.py create mode 100644 venv/Lib/site-packages/pydantic/mypy.py create mode 100644 venv/Lib/site-packages/pydantic/networks.py create mode 100644 venv/Lib/site-packages/pydantic/parse.py create mode 100644 venv/Lib/site-packages/pydantic/py.typed diff --git a/venv/Lib/site-packages/pydantic/main.py b/venv/Lib/site-packages/pydantic/main.py new file mode 100644 index 0000000..2ed62e5 --- /dev/null +++ b/venv/Lib/site-packages/pydantic/main.py @@ -0,0 +1,1838 @@ +"""Logic for creating models.""" + +# Because `dict` is in the local namespace of the `BaseModel` class, we use `Dict` for annotations. +# TODO v3 fallback to `dict` when the deprecated `dict` method gets removed. +# ruff: noqa: UP035 + +from __future__ import annotations as _annotations + +import operator +import sys +import types +import warnings +from collections.abc import Generator, Mapping +from copy import copy, deepcopy +from functools import cached_property +from typing import ( + TYPE_CHECKING, + Any, + Callable, + ClassVar, + Dict, + Generic, + Literal, + TypeVar, + Union, + cast, + overload, +) + +import pydantic_core +import typing_extensions +from pydantic_core import PydanticUndefined, ValidationError +from typing_extensions import Self, TypeAlias, Unpack + +from . import PydanticDeprecatedSince20, PydanticDeprecatedSince211 +from ._internal import ( + _config, + _decorators, + _fields, + _forward_ref, + _generics, + _mock_val_ser, + _model_construction, + _namespace_utils, + _repr, + _typing_extra, + _utils, +) +from ._migration import getattr_migration +from .aliases import AliasChoices, AliasPath +from .annotated_handlers import GetCoreSchemaHandler, GetJsonSchemaHandler +from .config import ConfigDict, ExtraValues +from .errors import PydanticUndefinedAnnotation, PydanticUserError +from .json_schema import DEFAULT_REF_TEMPLATE, GenerateJsonSchema, JsonSchemaMode, JsonSchemaValue, model_json_schema +from .plugin._schema_validator import PluggableSchemaValidator + +if TYPE_CHECKING: + from inspect import Signature + from pathlib import Path + + from pydantic_core import CoreSchema, SchemaSerializer, SchemaValidator + + from ._internal._fields import PydanticExtraInfo + from ._internal._namespace_utils import MappingNamespace + from ._internal._utils import AbstractSetIntStr, MappingIntStrAny + from .deprecated.parse import Protocol as DeprecatedParseProtocol + from .fields import ComputedFieldInfo, FieldInfo, ModelPrivateAttr + + +__all__ = 'BaseModel', 'create_model' + +# Keep these type aliases available at runtime: +TupleGenerator: TypeAlias = Generator[tuple[str, Any], None, None] +# NOTE: In reality, `bool` should be replaced by `Literal[True]` but mypy fails to correctly apply bidirectional +# type inference (e.g. when using `{'a': {'b': True}}`): +# NOTE: Keep this type alias in sync with the stub definition in `pydantic-core`: +IncEx: TypeAlias = Union[set[int], set[str], Mapping[int, Union['IncEx', bool]], Mapping[str, Union['IncEx', bool]]] + +_object_setattr = _model_construction.object_setattr + + +def _check_frozen(model_cls: type[BaseModel], name: str, value: Any) -> None: + if model_cls.model_config.get('frozen'): + error_type = 'frozen_instance' + elif getattr(model_cls.__pydantic_fields__.get(name), 'frozen', False): + error_type = 'frozen_field' + else: + return + + raise ValidationError.from_exception_data( + model_cls.__name__, [{'type': error_type, 'loc': (name,), 'input': value}] + ) + + +def _model_field_setattr_handler(model: BaseModel, name: str, val: Any) -> None: + model.__dict__[name] = val + model.__pydantic_fields_set__.add(name) + + +def _private_setattr_handler(model: BaseModel, name: str, val: Any) -> None: + if getattr(model, '__pydantic_private__', None) is None: + # While the attribute should be present at this point, this may not be the case if + # users do unusual stuff with `model_post_init()` (which is where the `__pydantic_private__` + # is initialized, by wrapping the user-defined `model_post_init()`), e.g. if they mock + # the `model_post_init()` call. Ideally we should find a better way to init private attrs. + object.__setattr__(model, '__pydantic_private__', {}) + model.__pydantic_private__[name] = val # pyright: ignore[reportOptionalSubscript] + + +_SIMPLE_SETATTR_HANDLERS: Mapping[str, Callable[[BaseModel, str, Any], None]] = { + 'model_field': _model_field_setattr_handler, + 'validate_assignment': lambda model, name, val: model.__pydantic_validator__.validate_assignment(model, name, val), # pyright: ignore[reportAssignmentType] + 'private': _private_setattr_handler, + 'cached_property': lambda model, name, val: model.__dict__.__setitem__(name, val), + 'extra_known': lambda model, name, val: _object_setattr(model, name, val), +} + + +class BaseModel(metaclass=_model_construction.ModelMetaclass): + """!!! abstract "Usage Documentation" + [Models](../concepts/models.md) + + A base class for creating Pydantic models. + + Attributes: + __class_vars__: The names of the class variables defined on the model. + __private_attributes__: Metadata about the private attributes of the model. + __signature__: The synthesized `__init__` [`Signature`][inspect.Signature] of the model. + + __pydantic_complete__: Whether model building is completed, or if there are still undefined fields. + __pydantic_core_schema__: The core schema of the model. + __pydantic_custom_init__: Whether the model has a custom `__init__` function. + __pydantic_decorators__: Metadata containing the decorators defined on the model. + This replaces `Model.__validators__` and `Model.__root_validators__` from Pydantic V1. + __pydantic_generic_metadata__: A dictionary containing metadata about generic Pydantic models. + The `origin` and `args` items map to the [`__origin__`][genericalias.__origin__] + and [`__args__`][genericalias.__args__] attributes of [generic aliases][types-genericalias], + and the `parameter` item maps to the `__parameter__` attribute of generic classes. + __pydantic_parent_namespace__: Parent namespace of the model, used for automatic rebuilding of models. + __pydantic_post_init__: The name of the post-init method for the model, if defined. + __pydantic_root_model__: Whether the model is a [`RootModel`][pydantic.root_model.RootModel]. + __pydantic_serializer__: The `pydantic-core` `SchemaSerializer` used to dump instances of the model. + __pydantic_validator__: The `pydantic-core` `SchemaValidator` used to validate instances of the model. + + __pydantic_fields__: A dictionary of field names and their corresponding [`FieldInfo`][pydantic.fields.FieldInfo] objects. + __pydantic_computed_fields__: A dictionary of computed field names and their corresponding [`ComputedFieldInfo`][pydantic.fields.ComputedFieldInfo] objects. + + __pydantic_extra__: A dictionary containing extra values, if [`extra`][pydantic.config.ConfigDict.extra] + is set to `'allow'`. + __pydantic_fields_set__: The names of fields explicitly set during instantiation. + __pydantic_private__: Values of private attributes set on the model instance. + """ + + # Note: Many of the below class vars are defined in the metaclass, but we define them here for type checking purposes. + + model_config: ClassVar[ConfigDict] = ConfigDict() + """ + Configuration for the model, should be a dictionary conforming to [`ConfigDict`][pydantic.config.ConfigDict]. + """ + + __class_vars__: ClassVar[set[str]] + """The names of the class variables defined on the model.""" + + __private_attributes__: ClassVar[Dict[str, ModelPrivateAttr]] # noqa: UP006 + """Metadata about the private attributes of the model.""" + + __signature__: ClassVar[Signature] + """The synthesized `__init__` [`Signature`][inspect.Signature] of the model.""" + + __pydantic_complete__: ClassVar[bool] = False + """Whether model building is completed, or if there are still undefined fields.""" + + __pydantic_core_schema__: ClassVar[CoreSchema] + """The core schema of the model.""" + + __pydantic_custom_init__: ClassVar[bool] + """Whether the model has a custom `__init__` method.""" + + # Must be set for `GenerateSchema.model_schema` to work for a plain `BaseModel` annotation. + __pydantic_decorators__: ClassVar[_decorators.DecoratorInfos] = _decorators.DecoratorInfos() + """Metadata containing the decorators defined on the model. + This replaces `Model.__validators__` and `Model.__root_validators__` from Pydantic V1.""" + + __pydantic_generic_metadata__: ClassVar[_generics.PydanticGenericMetadata] + """A dictionary containing metadata about generic Pydantic models. + + The `origin` and `args` items map to the [`__origin__`][genericalias.__origin__] + and [`__args__`][genericalias.__args__] attributes of [generic aliases][types-genericalias], + and the `parameter` item maps to the `__parameter__` attribute of generic classes. + """ + + __pydantic_parent_namespace__: ClassVar[Dict[str, Any] | None] = None # noqa: UP006 + """Parent namespace of the model, used for automatic rebuilding of models.""" + + __pydantic_post_init__: ClassVar[None | Literal['model_post_init']] + """The name of the post-init method for the model, if defined.""" + + __pydantic_root_model__: ClassVar[bool] = False + """Whether the model is a [`RootModel`][pydantic.root_model.RootModel].""" + + __pydantic_serializer__: ClassVar[SchemaSerializer] + """The `pydantic-core` `SchemaSerializer` used to dump instances of the model.""" + + __pydantic_validator__: ClassVar[SchemaValidator | PluggableSchemaValidator] + """The `pydantic-core` `SchemaValidator` used to validate instances of the model.""" + + __pydantic_fields__: ClassVar[Dict[str, FieldInfo]] # noqa: UP006 + """A dictionary of field names and their corresponding [`FieldInfo`][pydantic.fields.FieldInfo] objects. + This replaces `Model.__fields__` from Pydantic V1. + """ + + __pydantic_setattr_handlers__: ClassVar[Dict[str, Callable[[BaseModel, str, Any], None]]] # noqa: UP006 + """`__setattr__` handlers. Memoizing the handlers leads to a dramatic performance improvement in `__setattr__`""" + + __pydantic_computed_fields__: ClassVar[Dict[str, ComputedFieldInfo]] # noqa: UP006 + """A dictionary of computed field names and their corresponding [`ComputedFieldInfo`][pydantic.fields.ComputedFieldInfo] objects.""" + + __pydantic_extra_info__: ClassVar[PydanticExtraInfo | None] + """A wrapper around the `__pydantic_extra__` annotation, if explicitly annotated on a model. + + This is a private attribute, not meant to be used outside Pydantic. + """ + + __pydantic_extra__: Dict[str, Any] | None = _model_construction.NoInitField(init=False) # noqa: UP006 + """A dictionary containing extra values, if [`extra`][pydantic.config.ConfigDict.extra] is set to `'allow'`.""" + + __pydantic_fields_set__: set[str] = _model_construction.NoInitField(init=False) + """The names of fields explicitly set during instantiation.""" + + __pydantic_private__: Dict[str, Any] | None = _model_construction.NoInitField(init=False) # noqa: UP006 + """Values of private attributes set on the model instance.""" + + if not TYPE_CHECKING: + # Prevent `BaseModel` from being instantiated directly + # (defined in an `if not TYPE_CHECKING` block for clarity and to avoid type checking errors): + __pydantic_core_schema__ = _mock_val_ser.MockCoreSchema( + 'Pydantic models should inherit from BaseModel, BaseModel cannot be instantiated directly', + code='base-model-instantiated', + ) + __pydantic_validator__ = _mock_val_ser.MockValSer( + 'Pydantic models should inherit from BaseModel, BaseModel cannot be instantiated directly', + val_or_ser='validator', + code='base-model-instantiated', + ) + __pydantic_serializer__ = _mock_val_ser.MockValSer( + 'Pydantic models should inherit from BaseModel, BaseModel cannot be instantiated directly', + val_or_ser='serializer', + code='base-model-instantiated', + ) + + __slots__ = '__dict__', '__pydantic_fields_set__', '__pydantic_extra__', '__pydantic_private__' + + def __init__(self, /, **data: Any) -> None: + """Create a new model by parsing and validating input data from keyword arguments. + + Raises [`ValidationError`][pydantic_core.ValidationError] if the input data cannot be + validated to form a valid model. + + `self` is explicitly positional-only to allow `self` as a field name. + """ + # `__tracebackhide__` tells pytest and some other tools to omit this function from tracebacks + __tracebackhide__ = True + validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self) + if self is not validated_self: + warnings.warn( + 'A custom validator is returning a value other than `self`.\n' + "Returning anything other than `self` from a top level model validator isn't supported when validating via `__init__`.\n" + 'See the `model_validator` docs (https://docs.pydantic.dev/latest/concepts/validators/#model-validators) for more details.', + stacklevel=2, + ) + + # The following line sets a flag that we use to determine when `__init__` gets overridden by the user + __init__.__pydantic_base_init__ = True # pyright: ignore[reportFunctionMemberAccess] + + @_utils.deprecated_instance_property + @classmethod + def model_fields(cls) -> dict[str, FieldInfo]: + """A mapping of field names to their respective [`FieldInfo`][pydantic.fields.FieldInfo] instances. + + !!! warning + Accessing this attribute from a model instance is deprecated, and will not work in Pydantic V3. + Instead, you should access this attribute from the model class. + """ + return getattr(cls, '__pydantic_fields__', {}) + + @_utils.deprecated_instance_property + @classmethod + def model_computed_fields(cls) -> dict[str, ComputedFieldInfo]: + """A mapping of computed field names to their respective [`ComputedFieldInfo`][pydantic.fields.ComputedFieldInfo] instances. + + !!! warning + Accessing this attribute from a model instance is deprecated, and will not work in Pydantic V3. + Instead, you should access this attribute from the model class. + """ + return getattr(cls, '__pydantic_computed_fields__', {}) + + @property + def model_extra(self) -> dict[str, Any] | None: + """Get extra fields set during validation. + + Returns: + A dictionary of extra fields, or `None` if `config.extra` is not set to `"allow"`. + """ + return self.__pydantic_extra__ + + @property + def model_fields_set(self) -> set[str]: + """Returns the set of fields that have been explicitly set on this model instance. + + Returns: + A set of strings representing the fields that have been set, + i.e. that were not filled from defaults. + """ + return self.__pydantic_fields_set__ + + @classmethod + def model_construct(cls, _fields_set: set[str] | None = None, **values: Any) -> Self: # noqa: C901 + """Creates a new instance of the `Model` class with validated data. + + Creates a new model setting `__dict__` and `__pydantic_fields_set__` from trusted or pre-validated data. + Default values are respected, but no other validation is performed. + + !!! note + `model_construct()` generally respects the `model_config.extra` setting on the provided model. + That is, if `model_config.extra == 'allow'`, then all extra passed values are added to the model instance's `__dict__` + and `__pydantic_extra__` fields. If `model_config.extra == 'ignore'` (the default), then all extra passed values are ignored. + Because no validation is performed with a call to `model_construct()`, having `model_config.extra == 'forbid'` does not result in + an error if extra values are passed, but they will be ignored. + + Args: + _fields_set: A set of field names that were originally explicitly set during instantiation. If provided, + this is directly used for the [`model_fields_set`][pydantic.BaseModel.model_fields_set] attribute. + Otherwise, the field names from the `values` argument will be used. + values: Trusted or pre-validated data dictionary. + + Returns: + A new instance of the `Model` class with validated data. + """ + m = cls.__new__(cls) + fields_values: dict[str, Any] = {} + fields_set = set() + + for name, field in cls.__pydantic_fields__.items(): + if field.alias is not None and field.alias in values: + fields_values[name] = values.pop(field.alias) + fields_set.add(name) + + if (name not in fields_set) and (field.validation_alias is not None): + validation_aliases: list[str | AliasPath] = ( + field.validation_alias.choices + if isinstance(field.validation_alias, AliasChoices) + else [field.validation_alias] + ) + + for alias in validation_aliases: + if isinstance(alias, str) and alias in values: + fields_values[name] = values.pop(alias) + fields_set.add(name) + break + elif isinstance(alias, AliasPath): + value = alias.search_dict_for_path(values) + if value is not PydanticUndefined: + fields_values[name] = value + fields_set.add(name) + break + + if name not in fields_set: + if name in values: + fields_values[name] = values.pop(name) + fields_set.add(name) + elif not field.is_required(): + fields_values[name] = field.get_default(call_default_factory=True, validated_data=fields_values) + if _fields_set is None: + _fields_set = fields_set + + _extra: dict[str, Any] | None = values if cls.model_config.get('extra') == 'allow' else None + _object_setattr(m, '__dict__', fields_values) + _object_setattr(m, '__pydantic_fields_set__', _fields_set) + if not cls.__pydantic_root_model__: + _object_setattr(m, '__pydantic_extra__', _extra) + _object_setattr(m, '__pydantic_private__', None) + + if cls.__pydantic_post_init__: + m.model_post_init(None) + # update private attributes with values set + if hasattr(m, '__pydantic_private__') and m.__pydantic_private__ is not None: + for k, v in values.items(): + if k in m.__private_attributes__: + m.__pydantic_private__[k] = v + + return m + + def model_copy(self, *, update: Mapping[str, Any] | None = None, deep: bool = False) -> Self: + """!!! abstract "Usage Documentation" + [`model_copy`](../concepts/models.md#model-copy) + + Returns a copy of the model. + + !!! note + The underlying instance's [`__dict__`][object.__dict__] attribute is copied. This + might have unexpected side effects if you store anything in it, on top of the model + fields (e.g. the value of [cached properties][functools.cached_property]). + + Args: + update: Values to change/add in the new model. Note: the data is not validated + before creating the new model. You should trust this data. + deep: Set to `True` to make a deep copy of the model. + + Returns: + New model instance. + """ + copied = self.__deepcopy__() if deep else self.__copy__() + if update: + if self.model_config.get('extra') == 'allow': + for k, v in update.items(): + if k in self.__pydantic_fields__: + copied.__dict__[k] = v + else: + if copied.__pydantic_extra__ is None: + copied.__pydantic_extra__ = {} + copied.__pydantic_extra__[k] = v + else: + copied.__dict__.update(update) + copied.__pydantic_fields_set__.update(update.keys()) + return copied + + def model_dump( + self, + *, + mode: Literal['json', 'python'] | str = 'python', + include: IncEx | None = None, + exclude: IncEx | None = None, + context: Any | None = None, + by_alias: bool | None = None, + exclude_unset: bool = False, + exclude_defaults: bool = False, + exclude_none: bool = False, + exclude_computed_fields: bool = False, + round_trip: bool = False, + warnings: bool | Literal['none', 'warn', 'error'] = True, + fallback: Callable[[Any], Any] | None = None, + serialize_as_any: bool = False, + polymorphic_serialization: bool | None = None, + ) -> dict[str, Any]: + """!!! abstract "Usage Documentation" + [`model_dump`](../concepts/serialization.md#python-mode) + + Generate a dictionary representation of the model, optionally specifying which fields to include or exclude. + + Args: + mode: The mode in which `to_python` should run. + If mode is 'json', the output will only contain JSON serializable types. + If mode is 'python', the output may contain non-JSON-serializable Python objects. + include: A set of fields to include in the output. + exclude: A set of fields to exclude from the output. + context: Additional context to pass to the serializer. + by_alias: Whether to use the field's alias in the dictionary key if defined. + exclude_unset: Whether to exclude fields that have not been explicitly set. + exclude_defaults: Whether to exclude fields that are set to their default value. + exclude_none: Whether to exclude fields that have a value of `None`. + exclude_computed_fields: Whether to exclude computed fields. + While this can be useful for round-tripping, it is usually recommended to use the dedicated + `round_trip` parameter instead. + round_trip: If True, dumped values should be valid as input for non-idempotent types such as Json[T]. + warnings: How to handle serialization errors. False/"none" ignores them, True/"warn" logs errors, + "error" raises a [`PydanticSerializationError`][pydantic_core.PydanticSerializationError]. + fallback: A function to call when an unknown value is encountered. If not provided, + a [`PydanticSerializationError`][pydantic_core.PydanticSerializationError] error is raised. + serialize_as_any: Whether to serialize fields with duck-typing serialization behavior. + polymorphic_serialization: Whether to use model and dataclass polymorphic serialization for this call. + + Returns: + A dictionary representation of the model. + """ + return self.__pydantic_serializer__.to_python( + self, + mode=mode, + by_alias=by_alias, + include=include, + exclude=exclude, + context=context, + exclude_unset=exclude_unset, + exclude_defaults=exclude_defaults, + exclude_none=exclude_none, + exclude_computed_fields=exclude_computed_fields, + round_trip=round_trip, + warnings=warnings, + fallback=fallback, + serialize_as_any=serialize_as_any, + polymorphic_serialization=polymorphic_serialization, + ) + + def model_dump_json( + self, + *, + indent: int | None = None, + ensure_ascii: bool = False, + include: IncEx | None = None, + exclude: IncEx | None = None, + context: Any | None = None, + by_alias: bool | None = None, + exclude_unset: bool = False, + exclude_defaults: bool = False, + exclude_none: bool = False, + exclude_computed_fields: bool = False, + round_trip: bool = False, + warnings: bool | Literal['none', 'warn', 'error'] = True, + fallback: Callable[[Any], Any] | None = None, + serialize_as_any: bool = False, + polymorphic_serialization: bool | None = None, + ) -> str: + """!!! abstract "Usage Documentation" + [`model_dump_json`](../concepts/serialization.md#json-mode) + + Generates a JSON representation of the model using Pydantic's `to_json` method. + + Args: + indent: Indentation to use in the JSON output. If None is passed, the output will be compact. + ensure_ascii: If `True`, the output is guaranteed to have all incoming non-ASCII characters escaped. + If `False` (the default), these characters will be output as-is. + include: Field(s) to include in the JSON output. + exclude: Field(s) to exclude from the JSON output. + context: Additional context to pass to the serializer. + by_alias: Whether to serialize using field aliases. + exclude_unset: Whether to exclude fields that have not been explicitly set. + exclude_defaults: Whether to exclude fields that are set to their default value. + exclude_none: Whether to exclude fields that have a value of `None`. + exclude_computed_fields: Whether to exclude computed fields. + While this can be useful for round-tripping, it is usually recommended to use the dedicated + `round_trip` parameter instead. + round_trip: If True, dumped values should be valid as input for non-idempotent types such as Json[T]. + warnings: How to handle serialization errors. False/"none" ignores them, True/"warn" logs errors, + "error" raises a [`PydanticSerializationError`][pydantic_core.PydanticSerializationError]. + fallback: A function to call when an unknown value is encountered. If not provided, + a [`PydanticSerializationError`][pydantic_core.PydanticSerializationError] error is raised. + serialize_as_any: Whether to serialize fields with duck-typing serialization behavior. + polymorphic_serialization: Whether to use model and dataclass polymorphic serialization for this call. + + Returns: + A JSON string representation of the model. + """ + return self.__pydantic_serializer__.to_json( + self, + indent=indent, + ensure_ascii=ensure_ascii, + include=include, + exclude=exclude, + context=context, + by_alias=by_alias, + exclude_unset=exclude_unset, + exclude_defaults=exclude_defaults, + exclude_none=exclude_none, + exclude_computed_fields=exclude_computed_fields, + round_trip=round_trip, + warnings=warnings, + fallback=fallback, + serialize_as_any=serialize_as_any, + polymorphic_serialization=polymorphic_serialization, + ).decode() + + @classmethod + def model_json_schema( + cls, + by_alias: bool = True, + ref_template: str = DEFAULT_REF_TEMPLATE, + schema_generator: type[GenerateJsonSchema] = GenerateJsonSchema, + mode: JsonSchemaMode = 'validation', + *, + union_format: Literal['any_of', 'primitive_type_array'] = 'any_of', + ) -> dict[str, Any]: + """Generates a JSON schema for a model class. + + Args: + by_alias: Whether to use attribute aliases or not. + ref_template: The reference template. + union_format: The format to use when combining schemas from unions together. Can be one of: + + - `'any_of'`: Use the [`anyOf`](https://json-schema.org/understanding-json-schema/reference/combining#anyOf) + keyword to combine schemas (the default). + - `'primitive_type_array'`: Use the [`type`](https://json-schema.org/understanding-json-schema/reference/type) + keyword as an array of strings, containing each type of the combination. If any of the schemas is not a primitive + type (`string`, `boolean`, `null`, `integer` or `number`) or contains constraints/metadata, falls back to + `any_of`. + schema_generator: To override the logic used to generate the JSON schema, as a subclass of + `GenerateJsonSchema` with your desired modifications + mode: The mode in which to generate the schema. + + Returns: + The JSON schema for the given model class. + """ + return model_json_schema( + cls, + by_alias=by_alias, + ref_template=ref_template, + union_format=union_format, + schema_generator=schema_generator, + mode=mode, + ) + + @classmethod + def model_parametrized_name(cls, params: tuple[type[Any], ...]) -> str: + """Compute the class name for parametrizations of generic classes. + + This method can be overridden to achieve a custom naming scheme for generic BaseModels. + + Args: + params: Tuple of types of the class. Given a generic class + `Model` with 2 type variables and a concrete model `Model[str, int]`, + the value `(str, int)` would be passed to `params`. + + Returns: + String representing the new class where `params` are passed to `cls` as type variables. + + Raises: + TypeError: Raised when trying to generate concrete names for non-generic models. + """ + if not issubclass(cls, Generic): + raise TypeError('Concrete names should only be generated for generic models.') + + # Any strings received should represent forward references, so we handle them specially below. + # If we eventually move toward wrapping them in a ForwardRef in __class_getitem__ in the future, + # we may be able to remove this special case. + param_names = [param if isinstance(param, str) else _repr.display_as_type(param) for param in params] + params_component = ', '.join(param_names) + return f'{cls.__name__}[{params_component}]' + + def model_post_init(self, context: Any, /) -> None: + """Override this method to perform additional initialization after `__init__` and `model_construct`. + This is useful if you want to do some validation that requires the entire model to be initialized. + """ + + @classmethod + def model_rebuild( + cls, + *, + force: bool = False, + raise_errors: bool = True, + _parent_namespace_depth: int = 2, + _types_namespace: MappingNamespace | None = None, + ) -> bool | None: + """Try to rebuild the pydantic-core schema for the model. + + This may be necessary when one of the annotations is a ForwardRef which could not be resolved during + the initial attempt to build the schema, and automatic rebuilding fails. + + Args: + force: Whether to force the rebuilding of the model schema, defaults to `False`. + raise_errors: Whether to raise errors, defaults to `True`. + _parent_namespace_depth: The depth level of the parent namespace, defaults to 2. + _types_namespace: The types namespace, defaults to `None`. + + Returns: + Returns `None` if the schema is already "complete" and rebuilding was not required. + If rebuilding _was_ required, returns `True` if rebuilding was successful, otherwise `False`. + """ + already_complete = cls.__pydantic_complete__ + if already_complete and not force: + return None + + cls.__pydantic_complete__ = False + + for attr in ('__pydantic_core_schema__', '__pydantic_validator__', '__pydantic_serializer__'): + if attr in cls.__dict__ and not isinstance(getattr(cls, attr), _mock_val_ser.MockValSer): + # Deleting the validator/serializer is necessary as otherwise they can get reused in + # pydantic-core. We do so only if they aren't mock instances, otherwise — as `model_rebuild()` + # isn't thread-safe — concurrent model instantiations can lead to the parent validator being used. + # Same applies for the core schema that can be reused in schema generation. + delattr(cls, attr) + + if _types_namespace is not None: + rebuild_ns = _types_namespace + elif _parent_namespace_depth > 0: + rebuild_ns = _typing_extra.parent_frame_namespace(parent_depth=_parent_namespace_depth, force=True) or {} + else: + rebuild_ns = {} + + parent_ns = _model_construction.unpack_lenient_weakvaluedict(cls.__pydantic_parent_namespace__) or {} + + ns_resolver = _namespace_utils.NsResolver( + parent_namespace={**rebuild_ns, **parent_ns}, + ) + + return _model_construction.complete_model_class( + cls, + _config.ConfigWrapper(cls.model_config, check=False), + ns_resolver, + raise_errors=raise_errors, + # If the model was already complete, we don't need to call the hook again. + call_on_complete_hook=not already_complete, + is_force_rebuild=force, + ) + + @classmethod + def model_validate( + cls, + obj: Any, + *, + strict: bool | None = None, + extra: ExtraValues | None = None, + from_attributes: bool | None = None, + context: Any | None = None, + by_alias: bool | None = None, + by_name: bool | None = None, + ) -> Self: + """Validate a pydantic model instance. + + Args: + obj: The object to validate. + strict: Whether to enforce types strictly. + extra: Whether to ignore, allow, or forbid extra data during model validation. + See the [`extra` configuration value][pydantic.ConfigDict.extra] for details. + from_attributes: Whether to extract data from object attributes. + context: Additional context to pass to the validator. + by_alias: Whether to use the field's alias when validating against the provided input data. + by_name: Whether to use the field's name when validating against the provided input data. + + Raises: + ValidationError: If the object could not be validated. + + Returns: + The validated model instance. + """ + # `__tracebackhide__` tells pytest and some other tools to omit this function from tracebacks + __tracebackhide__ = True + + if by_alias is False and by_name is not True: + raise PydanticUserError( + 'At least one of `by_alias` or `by_name` must be set to True.', + code='validate-by-alias-and-name-false', + ) + + return cls.__pydantic_validator__.validate_python( + obj, + strict=strict, + extra=extra, + from_attributes=from_attributes, + context=context, + by_alias=by_alias, + by_name=by_name, + ) + + @classmethod + def model_validate_json( + cls, + json_data: str | bytes | bytearray, + *, + strict: bool | None = None, + extra: ExtraValues | None = None, + context: Any | None = None, + by_alias: bool | None = None, + by_name: bool | None = None, + ) -> Self: + """!!! abstract "Usage Documentation" + [JSON Parsing](../concepts/json.md#json-parsing) + + Validate the given JSON data against the Pydantic model. + + Args: + json_data: The JSON data to validate. + strict: Whether to enforce types strictly. + extra: Whether to ignore, allow, or forbid extra data during model validation. + See the [`extra` configuration value][pydantic.ConfigDict.extra] for details. + context: Extra variables to pass to the validator. + by_alias: Whether to use the field's alias when validating against the provided input data. + by_name: Whether to use the field's name when validating against the provided input data. + + Returns: + The validated Pydantic model. + + Raises: + ValidationError: If `json_data` is not a JSON string or the object could not be validated. + """ + # `__tracebackhide__` tells pytest and some other tools to omit this function from tracebacks + __tracebackhide__ = True + + if by_alias is False and by_name is not True: + raise PydanticUserError( + 'At least one of `by_alias` or `by_name` must be set to True.', + code='validate-by-alias-and-name-false', + ) + + return cls.__pydantic_validator__.validate_json( + json_data, strict=strict, extra=extra, context=context, by_alias=by_alias, by_name=by_name + ) + + @classmethod + def model_validate_strings( + cls, + obj: Any, + *, + strict: bool | None = None, + extra: ExtraValues | None = None, + context: Any | None = None, + by_alias: bool | None = None, + by_name: bool | None = None, + ) -> Self: + """Validate the given object with string data against the Pydantic model. + + Args: + obj: The object containing string data to validate. + strict: Whether to enforce types strictly. + extra: Whether to ignore, allow, or forbid extra data during model validation. + See the [`extra` configuration value][pydantic.ConfigDict.extra] for details. + context: Extra variables to pass to the validator. + by_alias: Whether to use the field's alias when validating against the provided input data. + by_name: Whether to use the field's name when validating against the provided input data. + + Returns: + The validated Pydantic model. + """ + # `__tracebackhide__` tells pytest and some other tools to omit this function from tracebacks + __tracebackhide__ = True + + if by_alias is False and by_name is not True: + raise PydanticUserError( + 'At least one of `by_alias` or `by_name` must be set to True.', + code='validate-by-alias-and-name-false', + ) + + return cls.__pydantic_validator__.validate_strings( + obj, strict=strict, extra=extra, context=context, by_alias=by_alias, by_name=by_name + ) + + @classmethod + def __get_pydantic_core_schema__(cls, source: type[BaseModel], handler: GetCoreSchemaHandler, /) -> CoreSchema: + # This warning is only emitted when calling `super().__get_pydantic_core_schema__` from a model subclass. + # In the generate schema logic, this method (`BaseModel.__get_pydantic_core_schema__`) is special cased to + # *not* be called if not overridden. + warnings.warn( + 'The `__get_pydantic_core_schema__` method of the `BaseModel` class is deprecated. If you are calling ' + '`super().__get_pydantic_core_schema__` when overriding the method on a Pydantic model, consider using ' + '`handler(source)` instead. However, note that overriding this method on models can lead to unexpected ' + 'side effects.', + PydanticDeprecatedSince211, + stacklevel=2, + ) + # Logic copied over from `GenerateSchema._model_schema`: + schema = cls.__dict__.get('__pydantic_core_schema__') + if schema is not None and not isinstance(schema, _mock_val_ser.MockCoreSchema): + return cls.__pydantic_core_schema__ + + return handler(source) + + @classmethod + def __get_pydantic_json_schema__( + cls, + core_schema: CoreSchema, + handler: GetJsonSchemaHandler, + /, + ) -> JsonSchemaValue: + """Hook into generating the model's JSON schema. + + Args: + core_schema: A `pydantic-core` CoreSchema. + You can ignore this argument and call the handler with a new CoreSchema, + wrap this CoreSchema (`{'type': 'nullable', 'schema': current_schema}`), + or just call the handler with the original schema. + handler: Call into Pydantic's internal JSON schema generation. + This will raise a `pydantic.errors.PydanticInvalidForJsonSchema` if JSON schema + generation fails. + Since this gets called by `BaseModel.model_json_schema` you can override the + `schema_generator` argument to that function to change JSON schema generation globally + for a type. + + Returns: + A JSON schema, as a Python object. + """ + return handler(core_schema) + + @classmethod + def __pydantic_init_subclass__(cls, **kwargs: Any) -> None: + """This is intended to behave just like `__init_subclass__`, but is called by `ModelMetaclass` + only after basic class initialization is complete. In particular, attributes like `model_fields` will + be present when this is called, but forward annotations are not guaranteed to be resolved yet, + meaning that creating an instance of the class may fail. + + This is necessary because `__init_subclass__` will always be called by `type.__new__`, + and it would require a prohibitively large refactor to the `ModelMetaclass` to ensure that + `type.__new__` was called in such a manner that the class would already be sufficiently initialized. + + This will receive the same `kwargs` that would be passed to the standard `__init_subclass__`, namely, + any kwargs passed to the class definition that aren't used internally by Pydantic. + + Args: + **kwargs: Any keyword arguments passed to the class definition that aren't used internally + by Pydantic. + + Note: + You may want to override [`__pydantic_on_complete__()`][pydantic.main.BaseModel.__pydantic_on_complete__] + instead, which is called once the class and its fields are fully initialized and ready for validation. + """ + + @classmethod + def __pydantic_on_complete__(cls) -> None: + """This is called once the class and its fields are fully initialized and ready to be used. + + This typically happens when the class is created (just before + [`__pydantic_init_subclass__()`][pydantic.main.BaseModel.__pydantic_init_subclass__] is called on the superclass), + except when forward annotations are used that could not immediately be resolved. + In that case, it will be called later, when the model is rebuilt automatically or explicitly using + [`model_rebuild()`][pydantic.main.BaseModel.model_rebuild]. + """ + + def __class_getitem__( + cls, typevar_values: type[Any] | tuple[type[Any], ...] + ) -> type[BaseModel] | _forward_ref.PydanticRecursiveRef: + cached = _generics.get_cached_generic_type_early(cls, typevar_values) + if cached is not None: + return cached + + if cls is BaseModel: + raise TypeError('Type parameters should be placed on typing.Generic, not BaseModel') + if not hasattr(cls, '__parameters__'): + raise TypeError(f'{cls} cannot be parametrized because it does not inherit from typing.Generic') + if not cls.__pydantic_generic_metadata__['parameters'] and Generic not in cls.__bases__: + raise TypeError(f'{cls} is not a generic class') + + if not isinstance(typevar_values, tuple): + typevar_values = (typevar_values,) + + # For a model `class Model[T, U, V = int](BaseModel): ...` parametrized with `(str, bool)`, + # this gives us `{T: str, U: bool, V: int}`: + typevars_map = _generics.map_generic_model_arguments(cls, typevar_values) + # We also update the provided args to use defaults values (`(str, bool)` becomes `(str, bool, int)`): + typevar_values = tuple(v for v in typevars_map.values()) + + if _utils.all_identical(typevars_map.keys(), typevars_map.values()) and typevars_map: + submodel = cls # if arguments are equal to parameters it's the same object + _generics.set_cached_generic_type(cls, typevar_values, submodel) + else: + parent_args = cls.__pydantic_generic_metadata__['args'] + if not parent_args: + args = typevar_values + else: + args = tuple(_generics.replace_types(arg, typevars_map) for arg in parent_args) + + origin = cls.__pydantic_generic_metadata__['origin'] or cls + model_name = origin.model_parametrized_name(args) + params = tuple( + dict.fromkeys(_generics.iter_contained_typevars(typevars_map.values())) + ) # use dict as ordered set + + with _generics.generic_recursion_self_type(origin, args) as maybe_self_type: + cached = _generics.get_cached_generic_type_late(cls, typevar_values, origin, args) + if cached is not None: + return cached + + if maybe_self_type is not None: + return maybe_self_type + + # Attempt to rebuild the origin in case new types have been defined + try: + # depth 2 gets you above this __class_getitem__ call. + # Note that we explicitly provide the parent ns, otherwise + # `model_rebuild` will use the parent ns no matter if it is the ns of a module. + # We don't want this here, as this has unexpected effects when a model + # is being parametrized during a forward annotation evaluation. + parent_ns = _typing_extra.parent_frame_namespace(parent_depth=2) or {} + origin.model_rebuild(_types_namespace=parent_ns) + except PydanticUndefinedAnnotation: + # It's okay if it fails, it just means there are still undefined types + # that could be evaluated later. + pass + + submodel = _generics.create_generic_submodel(model_name, origin, args, params) + + _generics.set_cached_generic_type(cls, typevar_values, submodel, origin, args) + + return submodel + + def __copy__(self) -> Self: + """Returns a shallow copy of the model.""" + cls = type(self) + m = cls.__new__(cls) + _object_setattr(m, '__dict__', copy(self.__dict__)) + _object_setattr(m, '__pydantic_extra__', copy(self.__pydantic_extra__)) + _object_setattr(m, '__pydantic_fields_set__', copy(self.__pydantic_fields_set__)) + + if not hasattr(self, '__pydantic_private__') or self.__pydantic_private__ is None: + _object_setattr(m, '__pydantic_private__', None) + else: + _object_setattr( + m, + '__pydantic_private__', + {k: v for k, v in self.__pydantic_private__.items() if v is not PydanticUndefined}, + ) + + return m + + def __deepcopy__(self, memo: dict[int, Any] | None = None) -> Self: + """Returns a deep copy of the model.""" + cls = type(self) + m = cls.__new__(cls) + _object_setattr(m, '__dict__', deepcopy(self.__dict__, memo=memo)) + _object_setattr(m, '__pydantic_extra__', deepcopy(self.__pydantic_extra__, memo=memo)) + # This next line doesn't need a deepcopy because __pydantic_fields_set__ is a set[str], + # and attempting a deepcopy would be marginally slower. + _object_setattr(m, '__pydantic_fields_set__', copy(self.__pydantic_fields_set__)) + + if not hasattr(self, '__pydantic_private__') or self.__pydantic_private__ is None: + _object_setattr(m, '__pydantic_private__', None) + else: + _object_setattr( + m, + '__pydantic_private__', + deepcopy({k: v for k, v in self.__pydantic_private__.items() if v is not PydanticUndefined}, memo=memo), + ) + + return m + + if not TYPE_CHECKING: + # We put `__getattr__` in a non-TYPE_CHECKING block because otherwise, mypy allows arbitrary attribute access + # The same goes for __setattr__ and __delattr__, see: https://github.com/pydantic/pydantic/issues/8643 + + def __getattr__(self, item: str) -> Any: + private_attributes = object.__getattribute__(self, '__private_attributes__') + if item in private_attributes: + attribute = private_attributes[item] + if hasattr(attribute, '__get__'): + return attribute.__get__(self, type(self)) # type: ignore + + try: + # Note: self.__pydantic_private__ cannot be None if self.__private_attributes__ has items + return self.__pydantic_private__[item] # type: ignore + except KeyError as exc: + raise AttributeError(f'{type(self).__name__!r} object has no attribute {item!r}') from exc + else: + # `__pydantic_extra__` can fail to be set if the model is not yet fully initialized. + # See `BaseModel.__repr_args__` for more details + try: + pydantic_extra = object.__getattribute__(self, '__pydantic_extra__') + except AttributeError: + pydantic_extra = None + + if pydantic_extra and item in pydantic_extra: + return pydantic_extra[item] + else: + if hasattr(self.__class__, item): + return super().__getattribute__(item) # Raises AttributeError if appropriate + else: + # this is the current error + raise AttributeError(f'{type(self).__name__!r} object has no attribute {item!r}') + + def __setattr__(self, name: str, value: Any) -> None: + if (setattr_handler := self.__pydantic_setattr_handlers__.get(name)) is not None: + setattr_handler(self, name, value) + # if None is returned from _setattr_handler, the attribute was set directly + elif (setattr_handler := self._setattr_handler(name, value)) is not None: + setattr_handler(self, name, value) # call here to not memo on possibly unknown fields + self.__pydantic_setattr_handlers__[name] = setattr_handler # memoize the handler for faster access + + def _setattr_handler(self, name: str, value: Any) -> Callable[[BaseModel, str, Any], None] | None: + """Get a handler for setting an attribute on the model instance. + + Returns: + A handler for setting an attribute on the model instance. Used for memoization of the handler. + Memoizing the handlers leads to a dramatic performance improvement in `__setattr__` + Returns `None` when memoization is not safe, then the attribute is set directly. + """ + cls = self.__class__ + if name in cls.__class_vars__: + raise AttributeError( + f'{name!r} is a ClassVar of `{cls.__name__}` and cannot be set on an instance. ' + f'If you want to set a value on the class, use `{cls.__name__}.{name} = value`.' + ) + elif not _fields.is_valid_field_name(name): + if (attribute := cls.__private_attributes__.get(name)) is not None: + if hasattr(attribute, '__set__'): + return lambda model, _name, val: attribute.__set__(model, val) + else: + return _SIMPLE_SETATTR_HANDLERS['private'] + else: + _object_setattr(self, name, value) + return None # Can not return memoized handler with possibly freeform attr names + + attr = getattr(cls, name, None) + # NOTE: We currently special case properties and `cached_property`, but we might need + # to generalize this to all data/non-data descriptors at some point. For non-data descriptors + # (such as `cached_property`), it isn't obvious though. `cached_property` caches the value + # to the instance's `__dict__`, but other non-data descriptors might do things differently. + if isinstance(attr, cached_property): + return _SIMPLE_SETATTR_HANDLERS['cached_property'] + + _check_frozen(cls, name, value) + + # We allow properties to be set only on non frozen models for now (to match dataclasses). + # This can be changed if it ever gets requested. + if isinstance(attr, property): + return lambda model, _name, val: attr.__set__(model, val) + elif cls.model_config.get('validate_assignment'): + return _SIMPLE_SETATTR_HANDLERS['validate_assignment'] + elif name not in cls.__pydantic_fields__: + if cls.model_config.get('extra') != 'allow': + # TODO - matching error + raise ValueError(f'"{cls.__name__}" object has no field "{name}"') + elif attr is None: + # attribute does not exist, so put it in extra + self.__pydantic_extra__[name] = value + self.__pydantic_fields_set__.add(name) + return None # Can not return memoized handler with possibly freeform attr names + else: + # attribute _does_ exist, and was not in extra, so update it + return _SIMPLE_SETATTR_HANDLERS['extra_known'] + else: + return _SIMPLE_SETATTR_HANDLERS['model_field'] + + def __delattr__(self, item: str) -> Any: + cls = self.__class__ + + if item in self.__private_attributes__: + attribute = self.__private_attributes__[item] + if hasattr(attribute, '__delete__'): + attribute.__delete__(self) # type: ignore + return + + try: + # Note: self.__pydantic_private__ cannot be None if self.__private_attributes__ has items + del self.__pydantic_private__[item] # type: ignore + return + except KeyError as exc: + raise AttributeError(f'{cls.__name__!r} object has no attribute {item!r}') from exc + + # Allow cached properties to be deleted (even if the class is frozen): + attr = getattr(cls, item, None) + if isinstance(attr, cached_property): + return object.__delattr__(self, item) + + _check_frozen(cls, name=item, value=None) + + if item in self.__pydantic_fields__: + object.__delattr__(self, item) + elif self.__pydantic_extra__ is not None and item in self.__pydantic_extra__: + del self.__pydantic_extra__[item] + else: + try: + object.__delattr__(self, item) + except AttributeError: + raise AttributeError(f'{type(self).__name__!r} object has no attribute {item!r}') + + # Because we make use of `@dataclass_transform()`, `__replace__` is already synthesized by + # type checkers, so we define the implementation in this `if not TYPE_CHECKING:` block: + def __replace__(self, **changes: Any) -> Self: + return self.model_copy(update=changes) + + def __getstate__(self) -> dict[Any, Any]: + private = self.__pydantic_private__ + if private: + private = {k: v for k, v in private.items() if v is not PydanticUndefined} + return { + '__dict__': self.__dict__, + '__pydantic_extra__': self.__pydantic_extra__, + '__pydantic_fields_set__': self.__pydantic_fields_set__, + '__pydantic_private__': private, + } + + def __setstate__(self, state: dict[Any, Any]) -> None: + _object_setattr(self, '__pydantic_fields_set__', state.get('__pydantic_fields_set__', {})) + _object_setattr(self, '__pydantic_extra__', state.get('__pydantic_extra__', {})) + _object_setattr(self, '__pydantic_private__', state.get('__pydantic_private__', {})) + _object_setattr(self, '__dict__', state.get('__dict__', {})) + + if not TYPE_CHECKING: + + def __eq__(self, other: Any) -> bool: + if isinstance(other, BaseModel): + # When comparing instances of generic types for equality, as long as all field values are equal, + # only require their generic origin types to be equal, rather than exact type equality. + # This prevents headaches like MyGeneric(x=1) != MyGeneric[Any](x=1). + self_type = self.__pydantic_generic_metadata__['origin'] or self.__class__ + other_type = other.__pydantic_generic_metadata__['origin'] or other.__class__ + + # Perform common checks first + if not ( + self_type is other_type + and getattr(self, '__pydantic_private__', None) == getattr(other, '__pydantic_private__', None) + # We need to assume `None` and `{}` are equivalent, because extra behavior + # can be controlled at validation time: + and (self.__pydantic_extra__ or {}) == (other.__pydantic_extra__ or {}) + ): + return False + + # We only want to compare pydantic fields but ignoring fields is costly. + # We'll perform a fast check first, and fallback only when needed + # See GH-7444 and GH-7825 for rationale and a performance benchmark + + # First, do the fast (and sometimes faulty) __dict__ comparison + if self.__dict__ == other.__dict__: + # If the check above passes, then pydantic fields are equal, we can return early + return True + + # We don't want to trigger unnecessary costly filtering of __dict__ on all unequal objects, so we return + # early if there are no keys to ignore (we would just return False later on anyway) + model_fields = type(self).__pydantic_fields__.keys() + if self.__dict__.keys() <= model_fields and other.__dict__.keys() <= model_fields: + return False + + # If we reach here, there are non-pydantic-fields keys, mapped to unequal values, that we need to ignore + # Resort to costly filtering of the __dict__ objects + # We use operator.itemgetter because it is much faster than dict comprehensions + # NOTE: Contrary to standard python class and instances, when the Model class has a default value for an + # attribute and the model instance doesn't have a corresponding attribute, accessing the missing attribute + # raises an error in BaseModel.__getattr__ instead of returning the class attribute + # So we can use operator.itemgetter() instead of operator.attrgetter() + getter = operator.itemgetter(*model_fields) if model_fields else lambda _: _utils._SENTINEL + try: + return getter(self.__dict__) == getter(other.__dict__) + except KeyError: + # In rare cases (such as when using the deprecated BaseModel.copy() method), + # the __dict__ may not contain all model fields, which is how we can get here. + # getter(self.__dict__) is much faster than any 'safe' method that accounts + # for missing keys, and wrapping it in a `try` doesn't slow things down much + # in the common case. + self_fields_proxy = _utils.SafeGetItemProxy(self.__dict__) + other_fields_proxy = _utils.SafeGetItemProxy(other.__dict__) + return getter(self_fields_proxy) == getter(other_fields_proxy) + + # other instance is not a BaseModel + else: + return NotImplemented # delegate to the other item in the comparison + + if TYPE_CHECKING: + # We put `__init_subclass__` in a TYPE_CHECKING block because, even though we want the type-checking benefits + # described in the signature of `__init_subclass__` below, we don't want to modify the default behavior of + # subclass initialization. + + def __init_subclass__(cls, **kwargs: Unpack[ConfigDict]): + """This signature is included purely to help type-checkers check arguments to class declaration, which + provides a way to conveniently set model_config key/value pairs. + + ```python + from pydantic import BaseModel + + class MyModel(BaseModel, extra='allow'): ... + ``` + + However, this may be deceiving, since the _actual_ calls to `__init_subclass__` will not receive any + of the config arguments, and will only receive any keyword arguments passed during class initialization + that are _not_ expected keys in ConfigDict. (This is due to the way `ModelMetaclass.__new__` works.) + + Args: + **kwargs: Keyword arguments passed to the class definition, which set model_config + + Note: + You may want to override `__pydantic_init_subclass__` instead, which behaves similarly but is called + *after* the class is fully initialized. + """ + + def __iter__(self) -> TupleGenerator: + """So `dict(model)` works.""" + yield from [(k, v) for (k, v) in self.__dict__.items() if not k.startswith('_')] + extra = self.__pydantic_extra__ + if extra: + yield from extra.items() + + def __repr__(self) -> str: + return f'{self.__repr_name__()}({self.__repr_str__(", ")})' + + def __repr_args__(self) -> _repr.ReprArgs: + # Eagerly create the repr of computed fields, as this may trigger access of cached properties and as such + # modify the instance's `__dict__`. If we don't do it now, it could happen when iterating over the `__dict__` + # below if the instance happens to be referenced in a field, and would modify the `__dict__` size *during* iteration. + computed_fields_repr_args = [ + (k, getattr(self, k)) for k, v in self.__pydantic_computed_fields__.items() if v.repr + ] + + for k, v in self.__dict__.items(): + field = self.__pydantic_fields__.get(k) + if field and field.repr: + if v is not self: + yield k, v + else: + yield k, self.__repr_recursion__(v) + # `__pydantic_extra__` can fail to be set if the model is not yet fully initialized. + # This can happen if a `ValidationError` is raised during initialization and the instance's + # repr is generated as part of the exception handling. Therefore, we use `getattr` here + # with a fallback, even though the type hints indicate the attribute will always be present. + try: + pydantic_extra = object.__getattribute__(self, '__pydantic_extra__') + except AttributeError: + pydantic_extra = None + + if pydantic_extra is not None: + yield from ((k, v) for k, v in pydantic_extra.items()) + yield from computed_fields_repr_args + + # take logic from `_repr.Representation` without the side effects of inheritance, see #5740 + __repr_name__ = _repr.Representation.__repr_name__ + __repr_recursion__ = _repr.Representation.__repr_recursion__ + __repr_str__ = _repr.Representation.__repr_str__ + __pretty__ = _repr.Representation.__pretty__ + __rich_repr__ = _repr.Representation.__rich_repr__ + + def __str__(self) -> str: + return self.__repr_str__(' ') + + # ##### Deprecated methods from v1 ##### + @property + @typing_extensions.deprecated( + 'The `__fields__` attribute is deprecated, use the `model_fields` class property instead.', category=None + ) + def __fields__(self) -> dict[str, FieldInfo]: + warnings.warn( + 'The `__fields__` attribute is deprecated, use the `model_fields` class property instead.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + return getattr(type(self), '__pydantic_fields__', {}) + + @property + @typing_extensions.deprecated( + 'The `__fields_set__` attribute is deprecated, use `model_fields_set` instead.', + category=None, + ) + def __fields_set__(self) -> set[str]: + warnings.warn( + 'The `__fields_set__` attribute is deprecated, use `model_fields_set` instead.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + return self.__pydantic_fields_set__ + + @typing_extensions.deprecated('The `dict` method is deprecated; use `model_dump` instead.', category=None) + def dict( # noqa: D102 + self, + *, + include: IncEx | None = None, + exclude: IncEx | None = None, + by_alias: bool = False, + exclude_unset: bool = False, + exclude_defaults: bool = False, + exclude_none: bool = False, + ) -> Dict[str, Any]: # noqa UP006 + warnings.warn( + 'The `dict` method is deprecated; use `model_dump` instead.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + return self.model_dump( + include=include, + exclude=exclude, + by_alias=by_alias, + exclude_unset=exclude_unset, + exclude_defaults=exclude_defaults, + exclude_none=exclude_none, + ) + + @typing_extensions.deprecated('The `json` method is deprecated; use `model_dump_json` instead.', category=None) + def json( # noqa: D102 + self, + *, + include: IncEx | None = None, + exclude: IncEx | None = None, + by_alias: bool = False, + exclude_unset: bool = False, + exclude_defaults: bool = False, + exclude_none: bool = False, + encoder: Callable[[Any], Any] | None = PydanticUndefined, # type: ignore[assignment] + models_as_dict: bool = PydanticUndefined, # type: ignore[assignment] + **dumps_kwargs: Any, + ) -> str: + warnings.warn( + 'The `json` method is deprecated; use `model_dump_json` instead.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + if encoder is not PydanticUndefined: + raise TypeError('The `encoder` argument is no longer supported; use field serializers instead.') + if models_as_dict is not PydanticUndefined: + raise TypeError('The `models_as_dict` argument is no longer supported; use a model serializer instead.') + if dumps_kwargs: + raise TypeError('`dumps_kwargs` keyword arguments are no longer supported.') + return self.model_dump_json( + include=include, + exclude=exclude, + by_alias=by_alias, + exclude_unset=exclude_unset, + exclude_defaults=exclude_defaults, + exclude_none=exclude_none, + ) + + @classmethod + @typing_extensions.deprecated('The `parse_obj` method is deprecated; use `model_validate` instead.', category=None) + def parse_obj(cls, obj: Any) -> Self: # noqa: D102 + warnings.warn( + 'The `parse_obj` method is deprecated; use `model_validate` instead.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + return cls.model_validate(obj) + + @classmethod + @typing_extensions.deprecated( + 'The `parse_raw` method is deprecated; if your data is JSON use `model_validate_json`, ' + 'otherwise load the data then use `model_validate` instead.', + category=None, + ) + def parse_raw( # noqa: D102 + cls, + b: str | bytes, + *, + content_type: str | None = None, + encoding: str = 'utf8', + proto: DeprecatedParseProtocol | None = None, + allow_pickle: bool = False, + ) -> Self: # pragma: no cover + warnings.warn( + 'The `parse_raw` method is deprecated; if your data is JSON use `model_validate_json`, ' + 'otherwise load the data then use `model_validate` instead.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + from .deprecated import parse + + try: + obj = parse.load_str_bytes( + b, + proto=proto, + content_type=content_type, + encoding=encoding, + allow_pickle=allow_pickle, + ) + except (ValueError, TypeError) as exc: + import json + + # try to match V1 + if isinstance(exc, UnicodeDecodeError): + type_str = 'value_error.unicodedecode' + elif isinstance(exc, json.JSONDecodeError): + type_str = 'value_error.jsondecode' + elif isinstance(exc, ValueError): + type_str = 'value_error' + else: + type_str = 'type_error' + + # ctx is missing here, but since we've added `input` to the error, we're not pretending it's the same + error: pydantic_core.InitErrorDetails = { + # The type: ignore on the next line is to ignore the requirement of LiteralString + 'type': pydantic_core.PydanticCustomError(type_str, str(exc)), # type: ignore + 'loc': ('__root__',), + 'input': b, + } + raise pydantic_core.ValidationError.from_exception_data(cls.__name__, [error]) + return cls.model_validate(obj) + + @classmethod + @typing_extensions.deprecated( + 'The `parse_file` method is deprecated; load the data from file, then if your data is JSON ' + 'use `model_validate_json`, otherwise `model_validate` instead.', + category=None, + ) + def parse_file( # noqa: D102 + cls, + path: str | Path, + *, + content_type: str | None = None, + encoding: str = 'utf8', + proto: DeprecatedParseProtocol | None = None, + allow_pickle: bool = False, + ) -> Self: + warnings.warn( + 'The `parse_file` method is deprecated; load the data from file, then if your data is JSON ' + 'use `model_validate_json`, otherwise `model_validate` instead.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + from .deprecated import parse + + obj = parse.load_file( + path, + proto=proto, + content_type=content_type, + encoding=encoding, + allow_pickle=allow_pickle, + ) + return cls.parse_obj(obj) + + @classmethod + @typing_extensions.deprecated( + 'The `from_orm` method is deprecated; set ' + "`model_config['from_attributes']=True` and use `model_validate` instead.", + category=None, + ) + def from_orm(cls, obj: Any) -> Self: # noqa: D102 + warnings.warn( + 'The `from_orm` method is deprecated; set ' + "`model_config['from_attributes']=True` and use `model_validate` instead.", + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + if not cls.model_config.get('from_attributes', None): + raise PydanticUserError( + 'You must set the config attribute `from_attributes=True` to use from_orm', code=None + ) + return cls.model_validate(obj) + + @classmethod + @typing_extensions.deprecated('The `construct` method is deprecated; use `model_construct` instead.', category=None) + def construct(cls, _fields_set: set[str] | None = None, **values: Any) -> Self: # noqa: D102 + warnings.warn( + 'The `construct` method is deprecated; use `model_construct` instead.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + return cls.model_construct(_fields_set=_fields_set, **values) + + @typing_extensions.deprecated( + 'The `copy` method is deprecated; use `model_copy` instead. ' + 'See the docstring of `BaseModel.copy` for details about how to handle `include` and `exclude`.', + category=None, + ) + def copy( + self, + *, + include: AbstractSetIntStr | MappingIntStrAny | None = None, + exclude: AbstractSetIntStr | MappingIntStrAny | None = None, + update: Dict[str, Any] | None = None, # noqa UP006 + deep: bool = False, + ) -> Self: # pragma: no cover + """Returns a copy of the model. + + !!! warning "Deprecated" + This method is now deprecated; use `model_copy` instead. + + If you need `include` or `exclude`, use: + + ```python {test="skip" lint="skip"} + data = self.model_dump(include=include, exclude=exclude, round_trip=True) + data = {**data, **(update or {})} + copied = self.model_validate(data) + ``` + + Args: + include: Optional set or mapping specifying which fields to include in the copied model. + exclude: Optional set or mapping specifying which fields to exclude in the copied model. + update: Optional dictionary of field-value pairs to override field values in the copied model. + deep: If True, the values of fields that are Pydantic models will be deep-copied. + + Returns: + A copy of the model with included, excluded and updated fields as specified. + """ + warnings.warn( + 'The `copy` method is deprecated; use `model_copy` instead. ' + 'See the docstring of `BaseModel.copy` for details about how to handle `include` and `exclude`.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + from .deprecated import copy_internals + + values = dict( + copy_internals._iter( + self, to_dict=False, by_alias=False, include=include, exclude=exclude, exclude_unset=False + ), + **(update or {}), + ) + if self.__pydantic_private__ is None: + private = None + else: + private = {k: v for k, v in self.__pydantic_private__.items() if v is not PydanticUndefined} + + if self.__pydantic_extra__ is None: + extra: dict[str, Any] | None = None + else: + extra = self.__pydantic_extra__.copy() + for k in list(self.__pydantic_extra__): + if k not in values: # k was in the exclude + extra.pop(k) + for k in list(values): + if k in self.__pydantic_extra__: # k must have come from extra + extra[k] = values.pop(k) + + # new `__pydantic_fields_set__` can have unset optional fields with a set value in `update` kwarg + if update: + fields_set = self.__pydantic_fields_set__ | update.keys() + else: + fields_set = set(self.__pydantic_fields_set__) + + # removing excluded fields from `__pydantic_fields_set__` + if exclude: + fields_set -= set(exclude) + + return copy_internals._copy_and_set_values(self, values, fields_set, extra, private, deep=deep) + + @classmethod + @typing_extensions.deprecated('The `schema` method is deprecated; use `model_json_schema` instead.', category=None) + def schema( # noqa: D102 + cls, by_alias: bool = True, ref_template: str = DEFAULT_REF_TEMPLATE + ) -> Dict[str, Any]: # noqa UP006 + warnings.warn( + 'The `schema` method is deprecated; use `model_json_schema` instead.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + return cls.model_json_schema(by_alias=by_alias, ref_template=ref_template) + + @classmethod + @typing_extensions.deprecated( + 'The `schema_json` method is deprecated; use `model_json_schema` and json.dumps instead.', + category=None, + ) + def schema_json( # noqa: D102 + cls, *, by_alias: bool = True, ref_template: str = DEFAULT_REF_TEMPLATE, **dumps_kwargs: Any + ) -> str: # pragma: no cover + warnings.warn( + 'The `schema_json` method is deprecated; use `model_json_schema` and json.dumps instead.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + import json + + from .deprecated.json import pydantic_encoder + + return json.dumps( + cls.model_json_schema(by_alias=by_alias, ref_template=ref_template), + default=pydantic_encoder, + **dumps_kwargs, + ) + + @classmethod + @typing_extensions.deprecated('The `validate` method is deprecated; use `model_validate` instead.', category=None) + def validate(cls, value: Any) -> Self: # noqa: D102 + warnings.warn( + 'The `validate` method is deprecated; use `model_validate` instead.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + return cls.model_validate(value) + + @classmethod + @typing_extensions.deprecated( + 'The `update_forward_refs` method is deprecated; use `model_rebuild` instead.', + category=None, + ) + def update_forward_refs(cls, **localns: Any) -> None: # noqa: D102 + warnings.warn( + 'The `update_forward_refs` method is deprecated; use `model_rebuild` instead.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + if localns: # pragma: no cover + raise TypeError('`localns` arguments are not longer accepted.') + cls.model_rebuild(force=True) + + @typing_extensions.deprecated( + 'The private method `_iter` will be removed and should no longer be used.', category=None + ) + def _iter(self, *args: Any, **kwargs: Any) -> Any: + warnings.warn( + 'The private method `_iter` will be removed and should no longer be used.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + from .deprecated import copy_internals + + return copy_internals._iter(self, *args, **kwargs) + + @typing_extensions.deprecated( + 'The private method `_copy_and_set_values` will be removed and should no longer be used.', + category=None, + ) + def _copy_and_set_values(self, *args: Any, **kwargs: Any) -> Any: + warnings.warn( + 'The private method `_copy_and_set_values` will be removed and should no longer be used.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + from .deprecated import copy_internals + + return copy_internals._copy_and_set_values(self, *args, **kwargs) + + @classmethod + @typing_extensions.deprecated( + 'The private method `_get_value` will be removed and should no longer be used.', + category=None, + ) + def _get_value(cls, *args: Any, **kwargs: Any) -> Any: + warnings.warn( + 'The private method `_get_value` will be removed and should no longer be used.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + from .deprecated import copy_internals + + return copy_internals._get_value(cls, *args, **kwargs) + + @typing_extensions.deprecated( + 'The private method `_calculate_keys` will be removed and should no longer be used.', + category=None, + ) + def _calculate_keys(self, *args: Any, **kwargs: Any) -> Any: + warnings.warn( + 'The private method `_calculate_keys` will be removed and should no longer be used.', + category=PydanticDeprecatedSince20, + stacklevel=2, + ) + from .deprecated import copy_internals + + return copy_internals._calculate_keys(self, *args, **kwargs) + + +ModelT = TypeVar('ModelT', bound=BaseModel) + + +@overload +def create_model( + model_name: str, + /, + *, + __config__: ConfigDict | None = None, + __doc__: str | None = None, + __base__: None = None, + __module__: str = __name__, + __validators__: dict[str, Callable[..., Any]] | None = None, + __cls_kwargs__: dict[str, Any] | None = None, + __qualname__: str | None = None, + **field_definitions: Any | tuple[Any, Any], +) -> type[BaseModel]: ... + + +@overload +def create_model( + model_name: str, + /, + *, + __config__: ConfigDict | None = None, + __doc__: str | None = None, + __base__: type[ModelT] | tuple[type[ModelT], ...], + __module__: str = __name__, + __validators__: dict[str, Callable[..., Any]] | None = None, + __cls_kwargs__: dict[str, Any] | None = None, + __qualname__: str | None = None, + **field_definitions: Any | tuple[Any, Any], +) -> type[ModelT]: ... + + +def create_model( # noqa: C901 + model_name: str, + /, + *, + __config__: ConfigDict | None = None, + __doc__: str | None = None, + __base__: type[ModelT] | tuple[type[ModelT], ...] | None = None, + __module__: str | None = None, + __validators__: dict[str, Callable[..., Any]] | None = None, + __cls_kwargs__: dict[str, Any] | None = None, + __qualname__: str | None = None, + # TODO PEP 747: replace `Any` by the TypeForm: + **field_definitions: Any | tuple[Any, Any], +) -> type[ModelT]: + """!!! abstract "Usage Documentation" + [Dynamic Model Creation](../concepts/models.md#dynamic-model-creation) + + Dynamically creates and returns a new Pydantic model, in other words, `create_model` dynamically creates a + subclass of [`BaseModel`][pydantic.BaseModel]. + + !!! warning + This function may execute arbitrary code contained in field annotations, if string references need to be evaluated. + + See [Security implications of introspecting annotations](https://docs.python.org/3/library/annotationlib.html#annotationlib-security) for more information. + + Args: + model_name: The name of the newly created model. + __config__: The configuration of the new model. + __doc__: The docstring of the new model. + __base__: The base class or classes for the new model. + __module__: The name of the module that the model belongs to; + if `None`, the value is taken from `sys._getframe(1)` + __validators__: A dictionary of methods that validate fields. The keys are the names of the validation methods to + be added to the model, and the values are the validation methods themselves. You can read more about functional + validators [here](https://docs.pydantic.dev/2.9/concepts/validators/#field-validators). + __cls_kwargs__: A dictionary of keyword arguments for class creation, such as `metaclass`. + __qualname__: The qualified name of the newly created model. + **field_definitions: Field definitions of the new model. Either: + + - a single element, representing the type annotation of the field. + - a two-tuple, the first element being the type and the second element the assigned value + (either a default or the [`Field()`][pydantic.Field] function). + + Returns: + The new [model][pydantic.BaseModel]. + + Raises: + PydanticUserError: If `__base__` and `__config__` are both passed. + """ + if __base__ is None: + __base__ = (cast('type[ModelT]', BaseModel),) + elif not isinstance(__base__, tuple): + __base__ = (__base__,) + + __cls_kwargs__ = __cls_kwargs__ or {} + + fields: dict[str, Any] = {} + annotations: dict[str, Any] = {} + + for f_name, f_def in field_definitions.items(): + if isinstance(f_def, tuple): + if len(f_def) != 2: + raise PydanticUserError( + f'Field definition for {f_name!r} should a single element representing the type or a two-tuple, the first element ' + 'being the type and the second element the assigned value (either a default or the `Field()` function).', + code='create-model-field-definitions', + ) + + annotations[f_name] = f_def[0] + fields[f_name] = f_def[1] + else: + annotations[f_name] = f_def + + if __module__ is None: + f = sys._getframe(1) + __module__ = f.f_globals['__name__'] + + namespace: dict[str, Any] = {'__annotations__': annotations, '__module__': __module__} + if __doc__: + namespace['__doc__'] = __doc__ + if __qualname__ is not None: + namespace['__qualname__'] = __qualname__ + if __validators__: + namespace.update(__validators__) + namespace.update(fields) + if __config__: + namespace['model_config'] = __config__ + resolved_bases = types.resolve_bases(__base__) + meta, ns, kwds = types.prepare_class(model_name, resolved_bases, kwds=__cls_kwargs__) + if resolved_bases is not __base__: + ns['__orig_bases__'] = __base__ + namespace.update(ns) + + return meta( + model_name, + resolved_bases, + namespace, + __pydantic_reset_parent_namespace__=False, + _create_model_module=__module__, + **kwds, + ) + + +__getattr__ = getattr_migration(__name__) diff --git a/venv/Lib/site-packages/pydantic/mypy.py b/venv/Lib/site-packages/pydantic/mypy.py new file mode 100644 index 0000000..ed4c308 --- /dev/null +++ b/venv/Lib/site-packages/pydantic/mypy.py @@ -0,0 +1,1412 @@ +"""This module includes classes and functions designed specifically for use with the mypy plugin.""" + +from __future__ import annotations + +import sys +from collections.abc import Iterator +from configparser import ConfigParser +from typing import Any, Callable + +from mypy.errorcodes import ErrorCode +from mypy.expandtype import expand_type, expand_type_by_instance +from mypy.nodes import ( + ARG_NAMED, + ARG_NAMED_OPT, + ARG_OPT, + ARG_POS, + ARG_STAR2, + INVARIANT, + MDEF, + Argument, + AssignmentStmt, + Block, + CallExpr, + ClassDef, + Context, + Decorator, + DictExpr, + EllipsisExpr, + Expression, + FuncDef, + IfStmt, + JsonDict, + MemberExpr, + NameExpr, + PassStmt, + PlaceholderNode, + RefExpr, + Statement, + StrExpr, + SymbolTableNode, + TempNode, + TypeAlias, + TypeInfo, + Var, +) +from mypy.options import Options +from mypy.plugin import ( + CheckerPluginInterface, + ClassDefContext, + DynamicClassDefContext, + MethodContext, + Plugin, + ReportConfigContext, + SemanticAnalyzerPluginInterface, +) +from mypy.plugins.common import ( + deserialize_and_fixup_type, +) +from mypy.semanal import set_callable_name +from mypy.server.trigger import make_wildcard_trigger +from mypy.state import state +from mypy.type_visitor import TypeTranslator +from mypy.typeops import map_type_from_supertype +from mypy.types import ( + AnyType, + CallableType, + Instance, + NoneType, + Type, + TypeOfAny, + TypeType, + TypeVarType, + UnionType, + get_proper_type, +) +from mypy.typevars import fill_typevars +from mypy.util import get_unique_redefinition_name +from mypy.version import __version__ as mypy_version + +from pydantic._internal import _fields +from pydantic.version import parse_mypy_version + +CONFIGFILE_KEY = 'pydantic-mypy' +METADATA_KEY = 'pydantic-mypy-metadata' +BASEMODEL_FULLNAME = 'pydantic.main.BaseModel' +CREATE_MODEL_FULLNAME = 'pydantic.main.create_model' +BASESETTINGS_FULLNAME = 'pydantic_settings.main.BaseSettings' +ROOT_MODEL_FULLNAME = 'pydantic.root_model.RootModel' +MODEL_METACLASS_FULLNAME = 'pydantic._internal._model_construction.ModelMetaclass' +FIELD_FULLNAME = 'pydantic.fields.Field' +DATACLASS_FULLNAME = 'pydantic.dataclasses.dataclass' +MODEL_VALIDATOR_FULLNAME = 'pydantic.functional_validators.model_validator' +DECORATOR_FULLNAMES = { + 'pydantic.functional_validators.field_validator', + 'pydantic.functional_validators.model_validator', + 'pydantic.functional_serializers.serializer', + 'pydantic.functional_serializers.model_serializer', + 'pydantic.deprecated.class_validators.validator', + 'pydantic.deprecated.class_validators.root_validator', +} +IMPLICIT_CLASSMETHOD_DECORATOR_FULLNAMES = DECORATOR_FULLNAMES - {'pydantic.functional_serializers.model_serializer'} + + +MYPY_VERSION_TUPLE = parse_mypy_version(mypy_version) +BUILTINS_NAME = 'builtins' + +# Increment version if plugin changes and mypy caches should be invalidated +__version__ = 2 + + +def plugin(version: str) -> type[Plugin]: + """`version` is the mypy version string. + + We might want to use this to print a warning if the mypy version being used is + newer, or especially older, than we expect (or need). + + Args: + version: The mypy version string. + + Return: + The Pydantic mypy plugin type. + """ + return PydanticPlugin + + +class PydanticPlugin(Plugin): + """The Pydantic mypy plugin.""" + + def __init__(self, options: Options) -> None: + self.plugin_config = PydanticPluginConfig(options) + self._plugin_data = self.plugin_config.to_data() + super().__init__(options) + + def get_base_class_hook(self, fullname: str) -> Callable[[ClassDefContext], None] | None: + """Update Pydantic model class.""" + sym = self.lookup_fully_qualified(fullname) + if sym and isinstance(sym.node, TypeInfo): # pragma: no branch + # No branching may occur if the mypy cache has not been cleared + if sym.node.has_base(BASEMODEL_FULLNAME): + return self._pydantic_model_class_maker_callback + return None + + def get_metaclass_hook(self, fullname: str) -> Callable[[ClassDefContext], None] | None: + """Update Pydantic `ModelMetaclass` definition.""" + if fullname == MODEL_METACLASS_FULLNAME: + return self._pydantic_model_metaclass_marker_callback + return None + + def get_method_hook(self, fullname: str) -> Callable[[MethodContext], Type] | None: + """Adjust return type of `from_orm` method call.""" + if fullname.endswith('.from_orm'): + return from_attributes_callback + return None + + def get_dynamic_class_hook(self, fullname: str) -> Callable[[DynamicClassDefContext], None] | None: + """Recognize `create_model()` calls as dynamic BaseModel subclasses.""" + if fullname == CREATE_MODEL_FULLNAME: + return self._pydantic_create_model_callback + return None + + def report_config_data(self, ctx: ReportConfigContext) -> dict[str, Any]: + """Return all plugin config data. + + Used by mypy to determine if cache needs to be discarded. + """ + return self._plugin_data + + def _pydantic_model_class_maker_callback(self, ctx: ClassDefContext) -> None: + transformer = PydanticModelTransformer(ctx.cls, ctx.reason, ctx.api, self.plugin_config) + transformer.transform() + + def _pydantic_model_metaclass_marker_callback(self, ctx: ClassDefContext) -> None: + """Reset dataclass_transform_spec attribute of ModelMetaclass. + + Let the plugin handle it. This behavior can be disabled + if 'debug_dataclass_transform' is set to True', for testing purposes. + """ + if self.plugin_config.debug_dataclass_transform: + return + info_metaclass = ctx.cls.info.declared_metaclass + assert info_metaclass, "callback not passed from 'get_metaclass_hook'" + if getattr(info_metaclass.type, 'dataclass_transform_spec', None): + info_metaclass.type.dataclass_transform_spec = None + + def _pydantic_create_model_callback(self, ctx: DynamicClassDefContext) -> None: + """Make variables assigned from `create_model()` usable as types by mypy.""" + # Determine the base class from __base__ argument if provided + base_fullname = BASEMODEL_FULLNAME + for arg_name, arg_expr in zip(ctx.call.arg_names, ctx.call.args): + if arg_name == '__base__' and isinstance(arg_expr, RefExpr) and arg_expr.node is not None: + if isinstance(arg_expr.node, TypeInfo): + base_fullname = arg_expr.node.fullname + elif isinstance(arg_expr.node, Var) and isinstance(arg_expr.node.type, Instance): + base_fullname = arg_expr.node.type.type.fullname + + base_sym = ctx.api.lookup_fully_qualified_or_none(base_fullname) + if base_sym is None or not isinstance(base_sym.node, TypeInfo): + # Fall back to BaseModel + base_sym = ctx.api.lookup_fully_qualified_or_none(BASEMODEL_FULLNAME) + if base_sym is None or not isinstance(base_sym.node, TypeInfo): + return + + base_info = base_sym.node + base_instance = fill_typevars(base_info) + assert isinstance(base_instance, Instance) + + info = ctx.api.basic_new_typeinfo(ctx.name, base_instance, ctx.call.line) + info.metaclass_type = base_info.metaclass_type + + ctx.api.add_symbol_table_node(ctx.name, SymbolTableNode(MDEF, info)) + + +class PydanticPluginConfig: + """A Pydantic mypy plugin config holder. + + Attributes: + init_forbid_extra: Whether to add a `**kwargs` at the end of the generated `__init__` signature. + init_typed: Whether to annotate fields in the generated `__init__`. + warn_required_dynamic_aliases: Whether to raise required dynamic aliases error. + debug_dataclass_transform: Whether to not reset `dataclass_transform_spec` attribute + of `ModelMetaclass` for testing purposes. + """ + + __slots__ = ( + 'init_forbid_extra', + 'init_typed', + 'warn_required_dynamic_aliases', + 'debug_dataclass_transform', + ) + init_forbid_extra: bool + init_typed: bool + warn_required_dynamic_aliases: bool + debug_dataclass_transform: bool # undocumented + + def __init__(self, options: Options) -> None: + if options.config_file is None: # pragma: no cover + return + + toml_config = parse_toml(options.config_file) + if toml_config is not None: + config = toml_config.get('tool', {}).get('pydantic-mypy', {}) + for key in self.__slots__: + setting = config.get(key, False) + if not isinstance(setting, bool): + raise ValueError(f'Configuration value must be a boolean for key: {key}') + setattr(self, key, setting) + else: + plugin_config = ConfigParser() + plugin_config.read(options.config_file) + for key in self.__slots__: + setting = plugin_config.getboolean(CONFIGFILE_KEY, key, fallback=False) + setattr(self, key, setting) + + def to_data(self) -> dict[str, Any]: + """Returns a dict of config names to their values.""" + return {key: getattr(self, key) for key in self.__slots__} + + +def from_attributes_callback(ctx: MethodContext) -> Type: + """Raise an error if from_attributes is not enabled.""" + model_type: Instance + ctx_type = ctx.type + if isinstance(ctx_type, TypeType): + ctx_type = ctx_type.item + if isinstance(ctx_type, CallableType) and isinstance(ctx_type.ret_type, Instance): + model_type = ctx_type.ret_type # called on the class + elif isinstance(ctx_type, Instance): + model_type = ctx_type # called on an instance (unusual, but still valid) + else: # pragma: no cover + detail = f'ctx.type: {ctx_type} (of type {ctx_type.__class__.__name__})' + error_unexpected_behavior(detail, ctx.api, ctx.context) + return ctx.default_return_type + pydantic_metadata = model_type.type.metadata.get(METADATA_KEY) + if pydantic_metadata is None: + return ctx.default_return_type + if not model_type.type.has_base(BASEMODEL_FULLNAME): + # not a Pydantic v2 model + return ctx.default_return_type + from_attributes = pydantic_metadata.get('config', {}).get('from_attributes') + if from_attributes is not True: + error_from_attributes(model_type.type.name, ctx.api, ctx.context) + return ctx.default_return_type + + +class PydanticModelField: + """Based on mypy.plugins.dataclasses.DataclassAttribute.""" + + def __init__( + self, + name: str, + alias: str | None, + is_frozen: bool, + has_dynamic_alias: bool, + has_default: bool, + strict: bool | None, + line: int, + column: int, + type: Type | None, + info: TypeInfo, + ): + self.name = name + self.alias = alias + self.is_frozen = is_frozen + self.has_dynamic_alias = has_dynamic_alias + self.has_default = has_default + self.strict = strict + self.line = line + self.column = column + self.type = type + self.info = info + + def to_argument( + self, + current_info: TypeInfo, + typed: bool, + model_strict: bool, + force_optional: bool, + use_alias: bool, + api: SemanticAnalyzerPluginInterface, + force_typevars_invariant: bool, + is_root_model_root: bool, + ) -> Argument: + """Based on mypy.plugins.dataclasses.DataclassAttribute.to_argument.""" + variable = self.to_var(current_info, api, use_alias, force_typevars_invariant) + + strict = model_strict if self.strict is None else self.strict + if typed or strict: + type_annotation = self.expand_type(current_info, api, include_root_type=True) + else: + type_annotation = AnyType(TypeOfAny.explicit) + + return Argument( + variable=variable, + type_annotation=type_annotation, + initializer=None, + kind=ARG_OPT + if is_root_model_root + else (ARG_NAMED_OPT if force_optional or self.has_default else ARG_NAMED), + ) + + def expand_type( + self, + current_info: TypeInfo, + api: SemanticAnalyzerPluginInterface, + force_typevars_invariant: bool = False, + include_root_type: bool = False, + ) -> Type | None: + """Based on mypy.plugins.dataclasses.DataclassAttribute.expand_type.""" + if force_typevars_invariant: + # In some cases, mypy will emit an error "Cannot use a covariant type variable as a parameter" + # To prevent that, we add an option to replace typevars with invariant ones while building certain + # method signatures (in particular, `__init__`). There may be a better way to do this, if this causes + # us problems in the future, we should look into why the dataclasses plugin doesn't have this issue. + if isinstance(self.type, TypeVarType): + modified_type = self.type.copy_modified() + modified_type.variance = INVARIANT + self.type = modified_type + + if self.type is not None and self.info.self_type is not None: + # In general, it is not safe to call `expand_type()` during semantic analysis, + # however this plugin is called very late, so all types should be fully ready. + # Also, it is tricky to avoid eager expansion of Self types here (e.g. because + # we serialize attributes). + with state.strict_optional_set(api.options.strict_optional): + filled_with_typevars = fill_typevars(current_info) + # Cannot be TupleType as current_info represents a Pydantic model: + assert isinstance(filled_with_typevars, Instance) + if force_typevars_invariant: + for arg in filled_with_typevars.args: + if isinstance(arg, TypeVarType): + arg.variance = INVARIANT + + expanded_type = expand_type(self.type, {self.info.self_type.id: filled_with_typevars}) + if include_root_type and isinstance(expanded_type, Instance) and is_root_model(expanded_type.type): + # When a root model is used as a field, Pydantic allows both an instance of the root model + # as well as instances of the `root` field type: + root_type = expanded_type.type['root'].type + if root_type is None: + # Happens if the hint for 'root' has unsolved forward references + return expanded_type + expanded_root_type = expand_type_by_instance(root_type, expanded_type) + expanded_type = UnionType([expanded_type, expanded_root_type]) + return expanded_type + return self.type + + def to_var( + self, + current_info: TypeInfo, + api: SemanticAnalyzerPluginInterface, + use_alias: bool, + force_typevars_invariant: bool = False, + ) -> Var: + """Based on mypy.plugins.dataclasses.DataclassAttribute.to_var.""" + if use_alias and self.alias is not None: + name = self.alias + else: + name = self.name + + return Var(name, self.expand_type(current_info, api, force_typevars_invariant)) + + def serialize(self) -> JsonDict: + """Based on mypy.plugins.dataclasses.DataclassAttribute.serialize.""" + assert self.type + return { + 'name': self.name, + 'alias': self.alias, + 'is_frozen': self.is_frozen, + 'has_dynamic_alias': self.has_dynamic_alias, + 'has_default': self.has_default, + 'strict': self.strict, + 'line': self.line, + 'column': self.column, + 'type': self.type.serialize(), + } + + @classmethod + def deserialize(cls, info: TypeInfo, data: JsonDict, api: SemanticAnalyzerPluginInterface) -> PydanticModelField: + """Based on mypy.plugins.dataclasses.DataclassAttribute.deserialize.""" + data = data.copy() + typ = deserialize_and_fixup_type(data.pop('type'), api) + return cls(type=typ, info=info, **data) + + def expand_typevar_from_subtype(self, sub_type: TypeInfo, api: SemanticAnalyzerPluginInterface) -> None: + """Expands type vars in the context of a subtype when an attribute is inherited + from a generic super type. + """ + if self.type is not None: + with state.strict_optional_set(api.options.strict_optional): + self.type = map_type_from_supertype(self.type, sub_type, self.info) + + +class PydanticModelClassVar: + """Based on mypy.plugins.dataclasses.DataclassAttribute. + + ClassVars are ignored by subclasses. + + Attributes: + name: the ClassVar name + """ + + def __init__(self, name): + self.name = name + + @classmethod + def deserialize(cls, data: JsonDict) -> PydanticModelClassVar: + """Based on mypy.plugins.dataclasses.DataclassAttribute.deserialize.""" + data = data.copy() + return cls(**data) + + def serialize(self) -> JsonDict: + """Based on mypy.plugins.dataclasses.DataclassAttribute.serialize.""" + return { + 'name': self.name, + } + + +class PydanticModelTransformer: + """Transform the BaseModel subclass according to the plugin settings. + + Attributes: + tracked_config_fields: A set of field configs that the plugin has to track their value. + """ + + tracked_config_fields: set[str] = { + 'extra', + 'frozen', + 'from_attributes', + 'populate_by_name', + 'validate_by_alias', + 'validate_by_name', + 'alias_generator', + 'strict', + } + + def __init__( + self, + cls: ClassDef, + reason: Expression | Statement, + api: SemanticAnalyzerPluginInterface, + plugin_config: PydanticPluginConfig, + ) -> None: + self._cls = cls + self._reason = reason + self._api = api + + self.plugin_config = plugin_config + + def transform(self) -> bool: + """Configures the BaseModel subclass according to the plugin settings. + + In particular: + + * determines the model config and fields, + * adds a fields-aware signature for the initializer and construct methods + * freezes the class if frozen = True + * stores the fields, config, and if the class is settings in the mypy metadata for access by subclasses + """ + info = self._cls.info + is_a_root_model = is_root_model(info) + config = self.collect_config() + fields, class_vars = self.collect_fields_and_class_vars(config, is_a_root_model) + if fields is None or class_vars is None: + # Some definitions are not ready. We need another pass. + return False + for field in fields: + if field.type is None: + return False + + is_settings = info.has_base(BASESETTINGS_FULLNAME) + self.add_initializer(fields, config, is_settings, is_a_root_model) + self.add_model_construct_method(fields, config, is_settings, is_a_root_model) + self.set_frozen(fields, self._api, frozen=config.frozen is True) + + self.adjust_decorator_signatures() + + info.metadata[METADATA_KEY] = { + 'fields': {field.name: field.serialize() for field in fields}, + 'class_vars': {class_var.name: class_var.serialize() for class_var in class_vars}, + 'config': config.get_values_dict(), + } + + return True + + def adjust_decorator_signatures(self) -> None: + """When we decorate a function `f` with `pydantic.validator(...)`, `pydantic.field_validator` + or `pydantic.serializer(...)`, mypy sees `f` as a regular method taking a `self` instance, + even though pydantic internally wraps `f` with `classmethod` if necessary. + + Teach mypy this by marking any function whose outermost decorator is a `validator()`, + `field_validator()` or `serializer()` call as a `classmethod`. + """ + for sym in self._cls.info.names.values(): + if isinstance(sym.node, Decorator): + first_dec = sym.node.original_decorators[0] + if ( + isinstance(first_dec, CallExpr) + and isinstance(first_dec.callee, NameExpr) + and first_dec.callee.fullname in IMPLICIT_CLASSMETHOD_DECORATOR_FULLNAMES + # @model_validator(mode="after") is an exception, it expects a regular method + and not ( + first_dec.callee.fullname == MODEL_VALIDATOR_FULLNAME + and any( + first_dec.arg_names[i] == 'mode' and isinstance(arg, StrExpr) and arg.value == 'after' + for i, arg in enumerate(first_dec.args) + ) + ) + ): + # TODO: Only do this if the first argument of the decorated function is `cls` + sym.node.func.is_class = True + + def collect_config(self) -> ModelConfigData: # noqa: C901 (ignore complexity) + """Collects the values of the config attributes that are used by the plugin, accounting for parent classes.""" + cls = self._cls + config = ModelConfigData() + + has_config_kwargs = False + has_config_from_namespace = False + + # Handle `class MyModel(BaseModel, =, ...):` + for name, expr in cls.keywords.items(): + config_data = self.get_config_update(name, expr) + if config_data: + has_config_kwargs = True + config.update(config_data) + + # Handle `model_config` + stmt: Statement | None = None + for stmt in cls.defs.body: + if not isinstance(stmt, (AssignmentStmt, ClassDef)): + continue + + if isinstance(stmt, AssignmentStmt): + lhs = stmt.lvalues[0] + if not isinstance(lhs, NameExpr) or lhs.name != 'model_config': + continue + + if isinstance(stmt.rvalue, CallExpr): # calls to `dict` or `ConfigDict` + for arg_name, arg in zip(stmt.rvalue.arg_names, stmt.rvalue.args): + if arg_name is None: + continue + config.update(self.get_config_update(arg_name, arg, lax_extra=True)) + elif isinstance(stmt.rvalue, DictExpr): # dict literals + for key_expr, value_expr in stmt.rvalue.items: + if not isinstance(key_expr, StrExpr): + continue + config.update(self.get_config_update(key_expr.value, value_expr)) + + elif isinstance(stmt, ClassDef): + if stmt.name != 'Config': # 'deprecated' Config-class + continue + for substmt in stmt.defs.body: + if not isinstance(substmt, AssignmentStmt): + continue + lhs = substmt.lvalues[0] + if not isinstance(lhs, NameExpr): + continue + config.update(self.get_config_update(lhs.name, substmt.rvalue)) + + if has_config_kwargs: + self._api.fail( + 'Specifying config in two places is ambiguous, use either Config attribute or class kwargs', + cls, + ) + break + + has_config_from_namespace = True + + if has_config_kwargs or has_config_from_namespace: + if ( + stmt + and config.has_alias_generator + and not (config.validate_by_name or config.populate_by_name) + and self.plugin_config.warn_required_dynamic_aliases + ): + error_required_dynamic_aliases(self._api, stmt) + + for info in cls.info.mro[1:]: # 0 is the current class + if METADATA_KEY not in info.metadata: + continue + + # Each class depends on the set of fields in its ancestors + self._api.add_plugin_dependency(make_wildcard_trigger(info.fullname)) + for name, value in info.metadata[METADATA_KEY]['config'].items(): + config.setdefault(name, value) + return config + + def collect_fields_and_class_vars( + self, model_config: ModelConfigData, is_root_model: bool + ) -> tuple[list[PydanticModelField] | None, list[PydanticModelClassVar] | None]: + """Collects the fields for the model, accounting for parent classes.""" + cls = self._cls + + # First, collect fields and ClassVars belonging to any class in the MRO, ignoring duplicates. + # + # We iterate through the MRO in reverse because attrs defined in the parent must appear + # earlier in the attributes list than attrs defined in the child. See: + # https://docs.python.org/3/library/dataclasses.html#inheritance + # + # However, we also want fields defined in the subtype to override ones defined + # in the parent. We can implement this via a dict without disrupting the attr order + # because dicts preserve insertion order in Python 3.7+. + found_fields: dict[str, PydanticModelField] = {} + found_class_vars: dict[str, PydanticModelClassVar] = {} + for info in reversed(cls.info.mro[1:-1]): # 0 is the current class, -2 is BaseModel, -1 is object + # if BASEMODEL_METADATA_TAG_KEY in info.metadata and BASEMODEL_METADATA_KEY not in info.metadata: + # # We haven't processed the base class yet. Need another pass. + # return None, None + if METADATA_KEY not in info.metadata: + continue + + # Each class depends on the set of attributes in its dataclass ancestors. + self._api.add_plugin_dependency(make_wildcard_trigger(info.fullname)) + + for name, data in info.metadata[METADATA_KEY]['fields'].items(): + field = PydanticModelField.deserialize(info, data, self._api) + # (The following comment comes directly from the dataclasses plugin) + # TODO: We shouldn't be performing type operations during the main + # semantic analysis pass, since some TypeInfo attributes might + # still be in flux. This should be performed in a later phase. + field.expand_typevar_from_subtype(cls.info, self._api) + found_fields[name] = field + + sym_node = cls.info.names.get(name) + if sym_node and sym_node.node and not isinstance(sym_node.node, (Var, PlaceholderNode)): + self._api.fail( + 'BaseModel field may only be overridden by another field', + sym_node.node, + ) + # Collect ClassVars + for name, data in info.metadata[METADATA_KEY]['class_vars'].items(): + found_class_vars[name] = PydanticModelClassVar.deserialize(data) + + # Second, collect fields and ClassVars belonging to the current class. + current_field_names: set[str] = set() + current_class_vars_names: set[str] = set() + for stmt in self._get_assignment_statements_from_block(cls.defs): + maybe_field = self.collect_field_or_class_var_from_stmt(stmt, model_config, found_class_vars) + if maybe_field is None: + continue + + lhs = stmt.lvalues[0] + assert isinstance(lhs, NameExpr) # collect_field_or_class_var_from_stmt guarantees this + if isinstance(maybe_field, PydanticModelField): + if is_root_model and lhs.name != 'root': + error_extra_fields_on_root_model(self._api, stmt) + else: + current_field_names.add(lhs.name) + found_fields[lhs.name] = maybe_field + elif isinstance(maybe_field, PydanticModelClassVar): + current_class_vars_names.add(lhs.name) + found_class_vars[lhs.name] = maybe_field + + return list(found_fields.values()), list(found_class_vars.values()) + + def _get_assignment_statements_from_if_statement(self, stmt: IfStmt) -> Iterator[AssignmentStmt]: + for body in stmt.body: + if not body.is_unreachable: + yield from self._get_assignment_statements_from_block(body) + if stmt.else_body is not None and not stmt.else_body.is_unreachable: + yield from self._get_assignment_statements_from_block(stmt.else_body) + + def _get_assignment_statements_from_block(self, block: Block) -> Iterator[AssignmentStmt]: + for stmt in block.body: + if isinstance(stmt, AssignmentStmt): + yield stmt + elif isinstance(stmt, IfStmt): + yield from self._get_assignment_statements_from_if_statement(stmt) + + def collect_field_or_class_var_from_stmt( # noqa C901 + self, stmt: AssignmentStmt, model_config: ModelConfigData, class_vars: dict[str, PydanticModelClassVar] + ) -> PydanticModelField | PydanticModelClassVar | None: + """Get pydantic model field from statement. + + Args: + stmt: The statement. + model_config: Configuration settings for the model. + class_vars: ClassVars already known to be defined on the model. + + Returns: + A pydantic model field if it could find the field in statement. Otherwise, `None`. + """ + cls = self._cls + + lhs = stmt.lvalues[0] + if not isinstance(lhs, NameExpr) or not _fields.is_valid_field_name(lhs.name) or lhs.name == 'model_config': + return None + + if not stmt.new_syntax: + if ( + isinstance(stmt.rvalue, CallExpr) + and isinstance(stmt.rvalue.callee, CallExpr) + and isinstance(stmt.rvalue.callee.callee, NameExpr) + and stmt.rvalue.callee.callee.fullname in DECORATOR_FULLNAMES + ): + # This is a (possibly-reused) validator or serializer, not a field + # In particular, it looks something like: my_validator = validator('my_field')(f) + # Eventually, we may want to attempt to respect model_config['ignored_types'] + return None + + if lhs.name in class_vars: + # Class vars are not fields and are not required to be annotated + return None + + # The assignment does not have an annotation, and it's not anything else we recognize + error_untyped_fields(self._api, stmt) + return None + + lhs = stmt.lvalues[0] + if not isinstance(lhs, NameExpr): + return None + + if not _fields.is_valid_field_name(lhs.name) or lhs.name == 'model_config': + return None + + sym = cls.info.names.get(lhs.name) + if sym is None: # pragma: no cover + # This is likely due to a star import (see the dataclasses plugin for a more detailed explanation) + # This is the same logic used in the dataclasses plugin + return None + + node = sym.node + if isinstance(node, PlaceholderNode): # pragma: no cover + # See the PlaceholderNode docstring for more detail about how this can occur + # Basically, it is an edge case when dealing with complex import logic + + # The dataclasses plugin now asserts this cannot happen, but I'd rather not error if it does.. + return None + + if isinstance(node, TypeAlias): + self._api.fail( + 'Type aliases inside BaseModel definitions are not supported at runtime', + node, + ) + # Skip processing this node. This doesn't match the runtime behaviour, + # but the only alternative would be to modify the SymbolTable, + # and it's a little hairy to do that in a plugin. + return None + + if not isinstance(node, Var): # pragma: no cover + # Don't know if this edge case still happens with the `is_valid_field` check above + # but better safe than sorry + + # The dataclasses plugin now asserts this cannot happen, but I'd rather not error if it does.. + return None + + # x: ClassVar[int] is not a field + if node.is_classvar: + return PydanticModelClassVar(lhs.name) + + # x: InitVar[int] is not supported in BaseModel + node_type = get_proper_type(node.type) + if isinstance(node_type, Instance) and node_type.type.fullname == 'dataclasses.InitVar': + self._api.fail( + 'InitVar is not supported in BaseModel', + node, + ) + + has_default = self.get_has_default(stmt) + strict = self.get_strict(stmt) + + if sym.type is None and node.is_final and node.is_inferred: + # This follows the logic from the dataclasses plugin. The following comment is taken verbatim: + # + # This is a special case, assignment like x: Final = 42 is classified + # annotated above, but mypy strips the `Final` turning it into x = 42. + # We do not support inferred types in dataclasses, so we can try inferring + # type for simple literals, and otherwise require an explicit type + # argument for Final[...]. + typ = self._api.analyze_simple_literal_type(stmt.rvalue, is_final=True) + if typ: + node.type = typ + else: + self._api.fail( + 'Need type argument for Final[...] with non-literal default in BaseModel', + stmt, + ) + node.type = AnyType(TypeOfAny.from_error) + + if node.is_final and has_default: + # TODO this path should be removed (see https://github.com/pydantic/pydantic/issues/11119) + return PydanticModelClassVar(lhs.name) + + alias, has_dynamic_alias = self.get_alias_info(stmt) + if ( + has_dynamic_alias + and not (model_config.validate_by_name or model_config.populate_by_name) + and self.plugin_config.warn_required_dynamic_aliases + ): + error_required_dynamic_aliases(self._api, stmt) + is_frozen = self.is_field_frozen(stmt) + + init_type = self._infer_dataclass_attr_init_type(sym, lhs.name, stmt) + return PydanticModelField( + name=lhs.name, + has_dynamic_alias=has_dynamic_alias, + has_default=has_default, + strict=strict, + alias=alias, + is_frozen=is_frozen, + line=stmt.line, + column=stmt.column, + type=init_type, + info=cls.info, + ) + + def _infer_dataclass_attr_init_type(self, sym: SymbolTableNode, name: str, context: Context) -> Type | None: + """Infer __init__ argument type for an attribute. + + In particular, possibly use the signature of __set__. + """ + default = sym.type + if sym.implicit: + return default + t = get_proper_type(sym.type) + + # Perform a simple-minded inference from the signature of __set__, if present. + # We can't use mypy.checkmember here, since this plugin runs before type checking. + # We only support some basic scanerios here, which is hopefully sufficient for + # the vast majority of use cases. + if not isinstance(t, Instance): + return default + setter = t.type.get('__set__') + if setter: + if isinstance(setter.node, FuncDef): + super_info = t.type.get_containing_type_info('__set__') + assert super_info + if setter.type: + setter_type = get_proper_type(map_type_from_supertype(setter.type, t.type, super_info)) + else: + return AnyType(TypeOfAny.unannotated) + if isinstance(setter_type, CallableType) and setter_type.arg_kinds == [ + ARG_POS, + ARG_POS, + ARG_POS, + ]: + return expand_type_by_instance(setter_type.arg_types[2], t) + else: + self._api.fail(f'Unsupported signature for "__set__" in "{t.type.name}"', context) + else: + self._api.fail(f'Unsupported "__set__" in "{t.type.name}"', context) + + return default + + def add_initializer( + self, fields: list[PydanticModelField], config: ModelConfigData, is_settings: bool, is_root_model: bool + ) -> None: + """Adds a fields-aware `__init__` method to the class. + + The added `__init__` will be annotated with types vs. all `Any` depending on the plugin settings. + """ + if '__init__' in self._cls.info.names and not self._cls.info.names['__init__'].plugin_generated: + return # Don't generate an __init__ if one already exists + + typed = self.plugin_config.init_typed + model_strict = bool(config.strict) + use_alias = not (config.validate_by_name or config.populate_by_name) and config.validate_by_alias is not False + requires_dynamic_aliases = bool(config.has_alias_generator and not config.validate_by_name) + args = self.get_field_arguments( + fields, + typed=typed, + model_strict=model_strict, + requires_dynamic_aliases=requires_dynamic_aliases, + use_alias=use_alias, + is_settings=is_settings, + is_root_model=is_root_model, + force_typevars_invariant=True, + ) + + if is_settings: + base_settings_node = self._api.lookup_fully_qualified(BASESETTINGS_FULLNAME).node + assert isinstance(base_settings_node, TypeInfo) + if '__init__' in base_settings_node.names: + base_settings_init_node = base_settings_node.names['__init__'].node + assert isinstance(base_settings_init_node, FuncDef) + if base_settings_init_node is not None and base_settings_init_node.type is not None: + func_type = base_settings_init_node.type + assert isinstance(func_type, CallableType) + for arg_idx, arg_name in enumerate(func_type.arg_names): + if arg_name is None or arg_name.startswith('__') or not arg_name.startswith('_'): + continue + analyzed_variable_type = self._api.anal_type(func_type.arg_types[arg_idx]) + if analyzed_variable_type is not None and arg_name in ( + '_cli_settings_source', + '_build_sources', + ): + # These arg names are annotated with types explicitly parameterized with `Any`, and as such + # the Any causes issues with --disallow-any-explicit. As a workaround, change + # the Any type (as if the generic type was left unparameterized): + analyzed_variable_type = analyzed_variable_type.accept( + ChangeExplicitTypeOfAny(TypeOfAny.from_omitted_generics) + ) + variable = Var(arg_name, analyzed_variable_type) + args.append(Argument(variable, analyzed_variable_type, None, ARG_OPT)) + + if not self.should_init_forbid_extra(fields, config): + var = Var('kwargs') + args.append(Argument(var, AnyType(TypeOfAny.explicit), None, ARG_STAR2)) + + add_method(self._api, self._cls, '__init__', args=args, return_type=NoneType()) + + def add_model_construct_method( + self, + fields: list[PydanticModelField], + config: ModelConfigData, + is_settings: bool, + is_root_model: bool, + ) -> None: + """Adds a fully typed `model_construct` classmethod to the class. + + Similar to the fields-aware __init__ method, but always uses the field names (not aliases), + and does not treat settings fields as optional. + """ + set_str = self._api.named_type(f'{BUILTINS_NAME}.set', [self._api.named_type(f'{BUILTINS_NAME}.str')]) + optional_set_str = UnionType([set_str, NoneType()]) + fields_set_argument = Argument(Var('_fields_set', optional_set_str), optional_set_str, None, ARG_OPT) + with state.strict_optional_set(self._api.options.strict_optional): + args = self.get_field_arguments( + fields, + typed=True, + model_strict=bool(config.strict), + requires_dynamic_aliases=False, + use_alias=False, + is_settings=is_settings, + is_root_model=is_root_model, + ) + if not self.should_init_forbid_extra(fields, config): + var = Var('kwargs') + args.append(Argument(var, AnyType(TypeOfAny.explicit), None, ARG_STAR2)) + + args = args + [fields_set_argument] if is_root_model else [fields_set_argument] + args + + add_method( + self._api, + self._cls, + 'model_construct', + args=args, + return_type=fill_typevars(self._cls.info), + is_classmethod=True, + ) + + def set_frozen(self, fields: list[PydanticModelField], api: SemanticAnalyzerPluginInterface, frozen: bool) -> None: + """Marks all fields as properties so that attempts to set them trigger mypy errors. + + This is the same approach used by the attrs and dataclasses plugins. + """ + info = self._cls.info + for field in fields: + sym_node = info.names.get(field.name) + if sym_node is not None: + var = sym_node.node + if isinstance(var, Var): + var.is_property = frozen or field.is_frozen + elif isinstance(var, PlaceholderNode) and not self._api.final_iteration: + # See https://github.com/pydantic/pydantic/issues/5191 to hit this branch for test coverage + self._api.defer() + # `var` can also be a FuncDef or Decorator node (e.g. when overriding a field with a function or property). + # In that case, we don't want to do anything. Mypy will already raise an error that a field was not properly + # overridden. + else: + var = field.to_var(info, api, use_alias=False) + var.info = info + var.is_property = frozen + var._fullname = info.fullname + '.' + var.name + info.names[var.name] = SymbolTableNode(MDEF, var) + + def get_config_update(self, name: str, arg: Expression, lax_extra: bool = False) -> ModelConfigData | None: + """Determines the config update due to a single kwarg in the ConfigDict definition. + + Warns if a tracked config attribute is set to a value the plugin doesn't know how to interpret (e.g., an int) + """ + if name not in self.tracked_config_fields: + return None + if name == 'extra': + if isinstance(arg, StrExpr): + forbid_extra = arg.value == 'forbid' + elif isinstance(arg, MemberExpr): + forbid_extra = arg.name == 'forbid' + else: + if not lax_extra: + # Only emit an error for other types of `arg` (e.g., `NameExpr`, `ConditionalExpr`, etc.) when + # reading from a config class, etc. If a ConfigDict is used, then we don't want to emit an error + # because you'll get type checking from the ConfigDict itself. + # + # It would be nice if we could introspect the types better otherwise, but I don't know what the API + # is to evaluate an expr into its type and then check if that type is compatible with the expected + # type. Note that you can still get proper type checking via: `model_config = ConfigDict(...)`, just + # if you don't use an explicit string, the plugin won't be able to infer whether extra is forbidden. + error_invalid_config_value(name, self._api, arg) + return None + return ModelConfigData(forbid_extra=forbid_extra) + if name == 'alias_generator': + has_alias_generator = True + if isinstance(arg, NameExpr) and arg.fullname == 'builtins.None': + has_alias_generator = False + return ModelConfigData(has_alias_generator=has_alias_generator) + if isinstance(arg, NameExpr) and arg.fullname in ('builtins.True', 'builtins.False'): + return ModelConfigData(**{name: arg.fullname == 'builtins.True'}) + error_invalid_config_value(name, self._api, arg) + return None + + @staticmethod + def get_has_default(stmt: AssignmentStmt) -> bool: + """Returns a boolean indicating whether the field defined in `stmt` is a required field.""" + expr = stmt.rvalue + if isinstance(expr, TempNode): + # TempNode means annotation-only, so has no default + return False + if isinstance(expr, CallExpr) and isinstance(expr.callee, RefExpr) and expr.callee.fullname == FIELD_FULLNAME: + # The "default value" is a call to `Field`; at this point, the field has a default if and only if: + # * there is a positional argument that is not `...` + # * there is a keyword argument named "default" that is not `...` + # * there is a "default_factory" that is not `None` + for arg, name in zip(expr.args, expr.arg_names): + # If name is None, then this arg is the default because it is the only positional argument. + if name is None or name == 'default': + return arg.__class__ is not EllipsisExpr + if name == 'default_factory': + return not (isinstance(arg, NameExpr) and arg.fullname == 'builtins.None') + return False + # Has no default if the "default value" is Ellipsis (i.e., `field_name: Annotation = ...`) + return not isinstance(expr, EllipsisExpr) + + @staticmethod + def get_strict(stmt: AssignmentStmt) -> bool | None: + """Returns a the `strict` value of a field if defined, otherwise `None`.""" + expr = stmt.rvalue + if isinstance(expr, CallExpr) and isinstance(expr.callee, RefExpr) and expr.callee.fullname == FIELD_FULLNAME: + for arg, name in zip(expr.args, expr.arg_names): + if name != 'strict': + continue + if isinstance(arg, NameExpr): + if arg.fullname == 'builtins.True': + return True + elif arg.fullname == 'builtins.False': + return False + return None + return None + + @staticmethod + def get_alias_info(stmt: AssignmentStmt) -> tuple[str | None, bool]: + """Returns a pair (alias, has_dynamic_alias), extracted from the declaration of the field defined in `stmt`. + + `has_dynamic_alias` is True if and only if an alias is provided, but not as a string literal. + If `has_dynamic_alias` is True, `alias` will be None. + """ + expr = stmt.rvalue + if isinstance(expr, TempNode): + # TempNode means annotation-only + return None, False + + if not ( + isinstance(expr, CallExpr) and isinstance(expr.callee, RefExpr) and expr.callee.fullname == FIELD_FULLNAME + ): + # Assigned value is not a call to pydantic.fields.Field + return None, False + + if 'validation_alias' in expr.arg_names: + arg = expr.args[expr.arg_names.index('validation_alias')] + elif 'alias' in expr.arg_names: + arg = expr.args[expr.arg_names.index('alias')] + else: + return None, False + + if isinstance(arg, StrExpr): + return arg.value, False + else: + return None, True + + @staticmethod + def is_field_frozen(stmt: AssignmentStmt) -> bool: + """Returns whether the field is frozen, extracted from the declaration of the field defined in `stmt`. + + Note that this is only whether the field was declared to be frozen in a ` = Field(frozen=True)` + sense; this does not determine whether the field is frozen because the entire model is frozen; that is + handled separately. + """ + expr = stmt.rvalue + if isinstance(expr, TempNode): + # TempNode means annotation-only + return False + + if not ( + isinstance(expr, CallExpr) and isinstance(expr.callee, RefExpr) and expr.callee.fullname == FIELD_FULLNAME + ): + # Assigned value is not a call to pydantic.fields.Field + return False + + for i, arg_name in enumerate(expr.arg_names): + if arg_name == 'frozen': + arg = expr.args[i] + return isinstance(arg, NameExpr) and arg.fullname == 'builtins.True' + return False + + def get_field_arguments( + self, + fields: list[PydanticModelField], + typed: bool, + model_strict: bool, + use_alias: bool, + requires_dynamic_aliases: bool, + is_settings: bool, + is_root_model: bool, + force_typevars_invariant: bool = False, + ) -> list[Argument]: + """Helper function used during the construction of the `__init__` and `model_construct` method signatures. + + Returns a list of mypy Argument instances for use in the generated signatures. + """ + info = self._cls.info + arguments = [ + field.to_argument( + info, + typed=typed, + model_strict=model_strict, + force_optional=requires_dynamic_aliases or is_settings, + use_alias=use_alias, + api=self._api, + force_typevars_invariant=force_typevars_invariant, + is_root_model_root=is_root_model and field.name == 'root', + ) + for field in fields + if not (use_alias and field.has_dynamic_alias) + ] + return arguments + + def should_init_forbid_extra(self, fields: list[PydanticModelField], config: ModelConfigData) -> bool: + """Indicates whether the generated `__init__` should get a `**kwargs` at the end of its signature. + + We disallow arbitrary kwargs if the extra config setting is "forbid", or if the plugin config says to, + *unless* a required dynamic alias is present (since then we can't determine a valid signature). + """ + if not (config.validate_by_name or config.populate_by_name): + if self.is_dynamic_alias_present(fields, bool(config.has_alias_generator)): + return False + if config.forbid_extra: + return True + return self.plugin_config.init_forbid_extra + + @staticmethod + def is_dynamic_alias_present(fields: list[PydanticModelField], has_alias_generator: bool) -> bool: + """Returns whether any fields on the model have a "dynamic alias", i.e., an alias that cannot be + determined during static analysis. + """ + for field in fields: + if field.has_dynamic_alias: + return True + if has_alias_generator: + for field in fields: + if field.alias is None: + return True + return False + + +class ChangeExplicitTypeOfAny(TypeTranslator): + """A type translator used to change type of Any's, if explicit.""" + + def __init__(self, type_of_any: int) -> None: + self._type_of_any = type_of_any + super().__init__() + + def visit_any(self, t: AnyType) -> Type: # noqa: D102 + if t.type_of_any == TypeOfAny.explicit: + return t.copy_modified(type_of_any=self._type_of_any) + else: + return t + + +class ModelConfigData: + """Pydantic mypy plugin model config class.""" + + def __init__( + self, + forbid_extra: bool | None = None, + frozen: bool | None = None, + from_attributes: bool | None = None, + populate_by_name: bool | None = None, + validate_by_alias: bool | None = None, + validate_by_name: bool | None = None, + has_alias_generator: bool | None = None, + strict: bool | None = None, + ): + self.forbid_extra = forbid_extra + self.frozen = frozen + self.from_attributes = from_attributes + self.populate_by_name = populate_by_name + self.validate_by_alias = validate_by_alias + self.validate_by_name = validate_by_name + self.has_alias_generator = has_alias_generator + self.strict = strict + + def get_values_dict(self) -> dict[str, Any]: + """Returns a dict of Pydantic model config names to their values. + + It includes the config if config value is not `None`. + """ + return {k: v for k, v in self.__dict__.items() if v is not None} + + def update(self, config: ModelConfigData | None) -> None: + """Update Pydantic model config values.""" + if config is None: + return + for k, v in config.get_values_dict().items(): + setattr(self, k, v) + + def setdefault(self, key: str, value: Any) -> None: + """Set default value for Pydantic model config if config value is `None`.""" + if getattr(self, key) is None: + setattr(self, key, value) + + +def is_root_model(info: TypeInfo) -> bool: + """Return whether the type info is a root model subclass (or the `RootModel` class itself).""" + return info.has_base(ROOT_MODEL_FULLNAME) + + +ERROR_ORM = ErrorCode('pydantic-orm', 'Invalid from_attributes call', 'Pydantic') +ERROR_CONFIG = ErrorCode('pydantic-config', 'Invalid config value', 'Pydantic') +ERROR_ALIAS = ErrorCode('pydantic-alias', 'Dynamic alias disallowed', 'Pydantic') +ERROR_UNEXPECTED = ErrorCode('pydantic-unexpected', 'Unexpected behavior', 'Pydantic') +ERROR_UNTYPED = ErrorCode('pydantic-field', 'Untyped field disallowed', 'Pydantic') +ERROR_FIELD_DEFAULTS = ErrorCode('pydantic-field', 'Invalid Field defaults', 'Pydantic') +ERROR_EXTRA_FIELD_ROOT_MODEL = ErrorCode('pydantic-field', 'Extra field on RootModel subclass', 'Pydantic') + + +def error_from_attributes(model_name: str, api: CheckerPluginInterface, context: Context) -> None: + """Emits an error when the model does not have `from_attributes=True`.""" + api.fail(f'"{model_name}" does not have from_attributes=True', context, code=ERROR_ORM) + + +def error_invalid_config_value(name: str, api: SemanticAnalyzerPluginInterface, context: Context) -> None: + """Emits an error when the config value is invalid.""" + api.fail(f'Invalid value for "Config.{name}"', context, code=ERROR_CONFIG) + + +def error_required_dynamic_aliases(api: SemanticAnalyzerPluginInterface, context: Context) -> None: + """Emits required dynamic aliases error. + + This will be called when `warn_required_dynamic_aliases=True`. + """ + api.fail('Required dynamic aliases disallowed', context, code=ERROR_ALIAS) + + +def error_unexpected_behavior( + detail: str, api: CheckerPluginInterface | SemanticAnalyzerPluginInterface, context: Context +) -> None: # pragma: no cover + """Emits unexpected behavior error.""" + # Can't think of a good way to test this, but I confirmed it renders as desired by adding to a non-error path + link = 'https://github.com/pydantic/pydantic/issues/new/choose' + full_message = f'The pydantic mypy plugin ran into unexpected behavior: {detail}\n' + full_message += f'Please consider reporting this bug at {link} so we can try to fix it!' + api.fail(full_message, context, code=ERROR_UNEXPECTED) + + +def error_untyped_fields(api: SemanticAnalyzerPluginInterface, context: Context) -> None: + """Emits an error when there is an untyped field in the model.""" + api.fail('Untyped fields disallowed', context, code=ERROR_UNTYPED) + + +def error_extra_fields_on_root_model(api: CheckerPluginInterface, context: Context) -> None: + """Emits an error when there is more than just a root field defined for a subclass of RootModel.""" + api.fail('Only `root` is allowed as a field of a `RootModel`', context, code=ERROR_EXTRA_FIELD_ROOT_MODEL) + + +def add_method( + api: SemanticAnalyzerPluginInterface | CheckerPluginInterface, + cls: ClassDef, + name: str, + args: list[Argument], + return_type: Type, + self_type: Type | None = None, + tvar_def: TypeVarType | None = None, + is_classmethod: bool = False, +) -> None: + """Very closely related to `mypy.plugins.common.add_method_to_class`, with a few pydantic-specific changes.""" + info = cls.info + + # First remove any previously generated methods with the same name + # to avoid clashes and problems in the semantic analyzer. + if name in info.names: + sym = info.names[name] + if sym.plugin_generated and isinstance(sym.node, FuncDef): + cls.defs.body.remove(sym.node) # pragma: no cover + + if isinstance(api, SemanticAnalyzerPluginInterface): + function_type = api.named_type('builtins.function') + else: + function_type = api.named_generic_type('builtins.function', []) + + if is_classmethod: + self_type = self_type or TypeType(fill_typevars(info)) + first = [Argument(Var('_cls'), self_type, None, ARG_POS, True)] + else: + self_type = self_type or fill_typevars(info) + # `self` is positional *ONLY* here, but this can't be expressed + # fully in the mypy internal API. ARG_POS is the closest we can get. + # Using ARG_POS will, however, give mypy errors if a `self` field + # is present on a model: + # + # Name "self" already defined (possibly by an import) [no-redef] + # + # As a workaround, we give this argument a name that will + # never conflict. By its positional nature, this name will not + # be used or exposed to users. + first = [Argument(Var('__pydantic_self__'), self_type, None, ARG_POS)] + args = first + args + + arg_types, arg_names, arg_kinds = [], [], [] + for arg in args: + assert arg.type_annotation, 'All arguments must be fully typed.' + arg_types.append(arg.type_annotation) + arg_names.append(arg.variable.name) + arg_kinds.append(arg.kind) + + signature = CallableType( + arg_types, arg_kinds, arg_names, return_type, function_type, variables=[tvar_def] if tvar_def else None + ) + + func = FuncDef(name, args, Block([PassStmt()])) + func.info = info + func.type = set_callable_name(signature, func) + func.is_class = is_classmethod + func._fullname = info.fullname + '.' + name + func.line = info.line + + # NOTE: we would like the plugin generated node to dominate, but we still + # need to keep any existing definitions so they get semantically analyzed. + if name in info.names: + # Get a nice unique name instead. + r_name = get_unique_redefinition_name(name, info.names) + info.names[r_name] = info.names[name] + + # Add decorator for is_classmethod + # The dataclasses plugin claims this is unnecessary for classmethods, but not including it results in a + # signature incompatible with the superclass, which causes mypy errors to occur for every subclass of BaseModel. + if is_classmethod: + func.is_decorated = True + v = Var(name, func.type) + v.info = info + v._fullname = func._fullname + v.is_classmethod = True + dec = Decorator(func, [NameExpr('classmethod')], v) + dec.line = info.line + sym = SymbolTableNode(MDEF, dec) + else: + sym = SymbolTableNode(MDEF, func) + sym.plugin_generated = True + info.names[name] = sym + + info.defn.defs.body.append(func) + + +def parse_toml(config_file: str) -> dict[str, Any] | None: + """Returns a dict of config keys to values. + + It reads configs from toml file and returns `None` if the file is not a toml file. + """ + if not config_file.endswith('.toml'): + return None + + if sys.version_info >= (3, 11): + import tomllib as toml_ + else: + try: + import tomli as toml_ + except ImportError: # pragma: no cover + import warnings + + warnings.warn('No TOML parser installed, cannot read configuration from `pyproject.toml`.', stacklevel=2) + return None + + with open(config_file, 'rb') as rf: + return toml_.load(rf) diff --git a/venv/Lib/site-packages/pydantic/networks.py b/venv/Lib/site-packages/pydantic/networks.py new file mode 100644 index 0000000..4015bad --- /dev/null +++ b/venv/Lib/site-packages/pydantic/networks.py @@ -0,0 +1,1332 @@ +"""The networks module contains types for common network-related fields.""" + +from __future__ import annotations as _annotations + +import dataclasses as _dataclasses +import re +from dataclasses import fields +from functools import lru_cache +from importlib.metadata import version +from ipaddress import IPv4Address, IPv4Interface, IPv4Network, IPv6Address, IPv6Interface, IPv6Network +from typing import TYPE_CHECKING, Annotated, Any, ClassVar + +from pydantic_core import ( + MultiHostHost, + PydanticCustomError, + PydanticSerializationUnexpectedValue, + SchemaSerializer, + core_schema, +) +from pydantic_core import MultiHostUrl as _CoreMultiHostUrl +from pydantic_core import Url as _CoreUrl +from typing_extensions import Self, TypeAlias + +from pydantic.errors import PydanticUserError + +from ._internal import _repr, _schema_generation_shared +from ._migration import getattr_migration +from .annotated_handlers import GetCoreSchemaHandler +from .json_schema import JsonSchemaValue +from .type_adapter import TypeAdapter + +if TYPE_CHECKING: + import email_validator + + NetworkType: TypeAlias = 'str | bytes | int | tuple[str | bytes | int, str | int]' + +else: + email_validator = None + + +__all__ = [ + 'AnyUrl', + 'AnyHttpUrl', + 'FileUrl', + 'FtpUrl', + 'HttpUrl', + 'WebsocketUrl', + 'AnyWebsocketUrl', + 'UrlConstraints', + 'EmailStr', + 'NameEmail', + 'IPvAnyAddress', + 'IPvAnyInterface', + 'IPvAnyNetwork', + 'PostgresDsn', + 'CockroachDsn', + 'AmqpDsn', + 'RedisDsn', + 'MongoDsn', + 'KafkaDsn', + 'NatsDsn', + 'validate_email', + 'MySQLDsn', + 'MariaDBDsn', + 'ClickHouseDsn', + 'SnowflakeDsn', +] + + +@_dataclasses.dataclass +class UrlConstraints: + """Url constraints. + + Attributes: + max_length: The maximum length of the url. Defaults to `None`. + allowed_schemes: The allowed schemes. Defaults to `None`. + host_required: Whether the host is required. Defaults to `None`. + default_host: The default host. Defaults to `None`. + default_port: The default port. Defaults to `None`. + default_path: The default path. Defaults to `None`. + preserve_empty_path: Whether to preserve empty URL paths. Defaults to `None`. + """ + + max_length: int | None = None + allowed_schemes: list[str] | None = None + host_required: bool | None = None + default_host: str | None = None + default_port: int | None = None + default_path: str | None = None + preserve_empty_path: bool | None = None + + def __hash__(self) -> int: + return hash( + ( + self.max_length, + tuple(self.allowed_schemes) if self.allowed_schemes is not None else None, + self.host_required, + self.default_host, + self.default_port, + self.default_path, + self.preserve_empty_path, + ) + ) + + @property + def defined_constraints(self) -> dict[str, Any]: + """Fetch a key / value mapping of constraints to values that are not None. Used for core schema updates.""" + return {field.name: value for field in fields(self) if (value := getattr(self, field.name)) is not None} + + def __get_pydantic_core_schema__(self, source: Any, handler: GetCoreSchemaHandler) -> core_schema.CoreSchema: + schema = handler(source) + + # for function-wrap schemas, url constraints is applied to the inner schema + # because when we generate schemas for urls, we wrap a core_schema.url_schema() with a function-wrap schema + # that helps with validation on initialization, see _BaseUrl and _BaseMultiHostUrl below. + schema_to_mutate = schema['schema'] if schema['type'] == 'function-wrap' else schema + if (annotated_type := schema_to_mutate['type']) not in ('url', 'multi-host-url'): + raise PydanticUserError( + f"'UrlConstraints' cannot annotate '{annotated_type}'.", code='invalid-annotated-type' + ) + for constraint_key, constraint_value in self.defined_constraints.items(): + schema_to_mutate[constraint_key] = constraint_value + return schema + + +class _BaseUrl: + _constraints: ClassVar[UrlConstraints] = UrlConstraints() + _url: _CoreUrl + + def __init__(self, url: str | _CoreUrl | _BaseUrl) -> None: + self._url = _build_type_adapter(self.__class__).validate_python(url)._url + + @property + def scheme(self) -> str: + """The scheme part of the URL. + + e.g. `https` in `https://user:pass@host:port/path?query#fragment` + """ + return self._url.scheme + + @property + def username(self) -> str | None: + """The username part of the URL, or `None`. + + e.g. `user` in `https://user:pass@host:port/path?query#fragment` + """ + return self._url.username + + @property + def password(self) -> str | None: + """The password part of the URL, or `None`. + + e.g. `pass` in `https://user:pass@host:port/path?query#fragment` + """ + return self._url.password + + @property + def host(self) -> str | None: + """The host part of the URL, or `None`. + + If the URL must be punycode encoded, this is the encoded host, e.g if the input URL is `https://£££.com`, + `host` will be `xn--9aaa.com` + """ + return self._url.host + + def unicode_host(self) -> str | None: + """The host part of the URL as a unicode string, or `None`. + + e.g. `host` in `https://user:pass@host:port/path?query#fragment` + + If the URL must be punycode encoded, this is the decoded host, e.g if the input URL is `https://£££.com`, + `unicode_host()` will be `£££.com` + """ + return self._url.unicode_host() + + @property + def port(self) -> int | None: + """The port part of the URL, or `None`. + + e.g. `port` in `https://user:pass@host:port/path?query#fragment` + """ + return self._url.port + + @property + def path(self) -> str | None: + """The path part of the URL, or `None`. + + e.g. `/path` in `https://user:pass@host:port/path?query#fragment` + """ + return self._url.path + + @property + def query(self) -> str | None: + """The query part of the URL, or `None`. + + e.g. `query` in `https://user:pass@host:port/path?query#fragment` + """ + return self._url.query + + def query_params(self) -> list[tuple[str, str]]: + """The query part of the URL as a list of key-value pairs. + + e.g. `[('foo', 'bar')]` in `https://user:pass@host:port/path?foo=bar#fragment` + """ + return self._url.query_params() + + @property + def fragment(self) -> str | None: + """The fragment part of the URL, or `None`. + + e.g. `fragment` in `https://user:pass@host:port/path?query#fragment` + """ + return self._url.fragment + + def unicode_string(self) -> str: + """The URL as a unicode string, unlike `__str__()` this will not punycode encode the host. + + If the URL must be punycode encoded, this is the decoded string, e.g if the input URL is `https://£££.com`, + `unicode_string()` will be `https://£££.com` + """ + return self._url.unicode_string() + + def encoded_string(self) -> str: + """The URL's encoded string representation via __str__(). + + This returns the punycode-encoded host version of the URL as a string. + """ + return str(self) + + def __str__(self) -> str: + """The URL as a string, this will punycode encode the host if required.""" + return str(self._url) + + def __repr__(self) -> str: + return f'{self.__class__.__name__}({str(self._url)!r})' + + def __deepcopy__(self, memo: dict) -> Self: + return self.__class__(self._url) + + def __eq__(self, other: Any) -> bool: + return self.__class__ is other.__class__ and self._url == other._url + + def __lt__(self, other: Any) -> bool: + return self.__class__ is other.__class__ and self._url < other._url + + def __gt__(self, other: Any) -> bool: + return self.__class__ is other.__class__ and self._url > other._url + + def __le__(self, other: Any) -> bool: + return self.__class__ is other.__class__ and self._url <= other._url + + def __ge__(self, other: Any) -> bool: + return self.__class__ is other.__class__ and self._url >= other._url + + def __hash__(self) -> int: + return hash(self._url) + + def __len__(self) -> int: + return len(str(self._url)) + + @classmethod + def build( + cls, + *, + scheme: str, + username: str | None = None, + password: str | None = None, + host: str, + port: int | None = None, + path: str | None = None, + query: str | None = None, + fragment: str | None = None, + ) -> Self: + """Build a new `Url` instance from its component parts. + + Args: + scheme: The scheme part of the URL. + username: The username part of the URL, or omit for no username. + password: The password part of the URL, or omit for no password. + host: The host part of the URL. + port: The port part of the URL, or omit for no port. + path: The path part of the URL, or omit for no path. + query: The query part of the URL, or omit for no query. + fragment: The fragment part of the URL, or omit for no fragment. + + Returns: + An instance of URL + """ + return cls( + _CoreUrl.build( + scheme=scheme, + username=username, + password=password, + host=host, + port=port, + path=path, + query=query, + fragment=fragment, + ) + ) + + @classmethod + def serialize_url(cls, url: Any, info: core_schema.SerializationInfo) -> str | Self: + if not isinstance(url, cls): + raise PydanticSerializationUnexpectedValue( + f"Expected `{cls}` but got `{type(url)}` with value `'{url}'` - serialized value may not be as expected." + ) + if info.mode == 'json': + return str(url) + return url + + @classmethod + def __get_pydantic_core_schema__( + cls, source: type[_BaseUrl], handler: GetCoreSchemaHandler + ) -> core_schema.CoreSchema: + def wrap_val(v, h): + if isinstance(v, source): + return v + if isinstance(v, _BaseUrl): + v = str(v) + core_url = h(v) + instance = source.__new__(source) + instance._url = core_url + return instance + + return core_schema.no_info_wrap_validator_function( + wrap_val, + schema=core_schema.url_schema(**cls._constraints.defined_constraints), + serialization=core_schema.plain_serializer_function_ser_schema( + cls.serialize_url, info_arg=True, when_used='always' + ), + ) + + @classmethod + def __get_pydantic_json_schema__( + cls, core_schema: core_schema.CoreSchema, handler: _schema_generation_shared.GetJsonSchemaHandler + ) -> JsonSchemaValue: + # we use the url schema for json schema generation, but we might have to extract it from + # the function-wrap schema we use as a tool for validation on initialization + inner_schema = core_schema['schema'] if core_schema['type'] == 'function-wrap' else core_schema + return handler(inner_schema) + + __pydantic_serializer__ = SchemaSerializer(core_schema.any_schema(serialization=core_schema.to_string_ser_schema())) + + +class _BaseMultiHostUrl: + _constraints: ClassVar[UrlConstraints] = UrlConstraints() + _url: _CoreMultiHostUrl + + def __init__(self, url: str | _CoreMultiHostUrl | _BaseMultiHostUrl) -> None: + self._url = _build_type_adapter(self.__class__).validate_python(url)._url + + @property + def scheme(self) -> str: + """The scheme part of the URL. + + e.g. `https` in `https://foo.com,bar.com/path?query#fragment` + """ + return self._url.scheme + + @property + def path(self) -> str | None: + """The path part of the URL, or `None`. + + e.g. `/path` in `https://foo.com,bar.com/path?query#fragment` + """ + return self._url.path + + @property + def query(self) -> str | None: + """The query part of the URL, or `None`. + + e.g. `query` in `https://foo.com,bar.com/path?query#fragment` + """ + return self._url.query + + def query_params(self) -> list[tuple[str, str]]: + """The query part of the URL as a list of key-value pairs. + + e.g. `[('foo', 'bar')]` in `https://foo.com,bar.com/path?foo=bar#fragment` + """ + return self._url.query_params() + + @property + def fragment(self) -> str | None: + """The fragment part of the URL, or `None`. + + e.g. `fragment` in `https://foo.com,bar.com/path?query#fragment` + """ + return self._url.fragment + + def hosts(self) -> list[MultiHostHost]: + '''The hosts of the `MultiHostUrl` as [`MultiHostHost`][pydantic_core.MultiHostHost] typed dicts. + + ```python + from pydantic_core import MultiHostUrl + + mhu = MultiHostUrl('https://foo.com:123,foo:bar@bar.com/path') + print(mhu.hosts()) + """ + [ + {'username': None, 'password': None, 'host': 'foo.com', 'port': 123}, + {'username': 'foo', 'password': 'bar', 'host': 'bar.com', 'port': 443} + ] + ``` + Returns: + A list of dicts, each representing a host. + ''' + return self._url.hosts() + + def encoded_string(self) -> str: + """The URL's encoded string representation via __str__(). + + This returns the punycode-encoded host version of the URL as a string. + """ + return str(self) + + def unicode_string(self) -> str: + """The URL as a unicode string, unlike `__str__()` this will not punycode encode the hosts.""" + return self._url.unicode_string() + + def __str__(self) -> str: + """The URL as a string, this will punycode encode the host if required.""" + return str(self._url) + + def __repr__(self) -> str: + return f'{self.__class__.__name__}({str(self._url)!r})' + + def __deepcopy__(self, memo: dict) -> Self: + return self.__class__(self._url) + + def __eq__(self, other: Any) -> bool: + return self.__class__ is other.__class__ and self._url == other._url + + def __hash__(self) -> int: + return hash(self._url) + + def __len__(self) -> int: + return len(str(self._url)) + + @classmethod + def build( + cls, + *, + scheme: str, + hosts: list[MultiHostHost] | None = None, + username: str | None = None, + password: str | None = None, + host: str | None = None, + port: int | None = None, + path: str | None = None, + query: str | None = None, + fragment: str | None = None, + ) -> Self: + """Build a new `MultiHostUrl` instance from its component parts. + + This method takes either `hosts` - a list of `MultiHostHost` typed dicts, or the individual components + `username`, `password`, `host` and `port`. + + Args: + scheme: The scheme part of the URL. + hosts: Multiple hosts to build the URL from. + username: The username part of the URL. + password: The password part of the URL. + host: The host part of the URL. + port: The port part of the URL. + path: The path part of the URL. + query: The query part of the URL, or omit for no query. + fragment: The fragment part of the URL, or omit for no fragment. + + Returns: + An instance of `MultiHostUrl` + """ + return cls( + _CoreMultiHostUrl.build( + scheme=scheme, + hosts=hosts, + username=username, + password=password, + host=host, + port=port, + path=path, + query=query, + fragment=fragment, + ) + ) + + @classmethod + def serialize_url(cls, url: Any, info: core_schema.SerializationInfo) -> str | Self: + if not isinstance(url, cls): + raise PydanticSerializationUnexpectedValue( + f"Expected `{cls}` but got `{type(url)}` with value `'{url}'` - serialized value may not be as expected." + ) + if info.mode == 'json': + return str(url) + return url + + @classmethod + def __get_pydantic_core_schema__( + cls, source: type[_BaseMultiHostUrl], handler: GetCoreSchemaHandler + ) -> core_schema.CoreSchema: + def wrap_val(v, h): + if isinstance(v, source): + return v + if isinstance(v, _BaseMultiHostUrl): + v = str(v) + core_url = h(v) + instance = source.__new__(source) + instance._url = core_url + return instance + + return core_schema.no_info_wrap_validator_function( + wrap_val, + schema=core_schema.multi_host_url_schema(**cls._constraints.defined_constraints), + serialization=core_schema.plain_serializer_function_ser_schema( + cls.serialize_url, info_arg=True, when_used='always' + ), + ) + + @classmethod + def __get_pydantic_json_schema__( + cls, core_schema: core_schema.CoreSchema, handler: _schema_generation_shared.GetJsonSchemaHandler + ) -> JsonSchemaValue: + # we use the url schema for json schema generation, but we might have to extract it from + # the function-wrap schema we use as a tool for validation on initialization + inner_schema = core_schema['schema'] if core_schema['type'] == 'function-wrap' else core_schema + return handler(inner_schema) + + __pydantic_serializer__ = SchemaSerializer(core_schema.any_schema(serialization=core_schema.to_string_ser_schema())) + + +@lru_cache +def _build_type_adapter(cls: type[_BaseUrl | _BaseMultiHostUrl]) -> TypeAdapter: + return TypeAdapter(cls) + + +class AnyUrl(_BaseUrl): + """Base type for all URLs. + + * Any scheme allowed + * Top-level domain (TLD) not required + * Host not required + + Assuming an input URL of `http://samuel:pass@example.com:8000/the/path/?query=here#fragment=is;this=bit`, + the types export the following properties: + + - `scheme`: the URL scheme (`http`), always set. + - `host`: the URL host (`example.com`). + - `username`: optional username if included (`samuel`). + - `password`: optional password if included (`pass`). + - `port`: optional port (`8000`). + - `path`: optional path (`/the/path/`). + - `query`: optional URL query (for example, `GET` arguments or "search string", such as `query=here`). + - `fragment`: optional fragment (`fragment=is;this=bit`). + """ + + +# Note: all single host urls inherit from `AnyUrl` to preserve compatibility with pre-v2.10 code +# Where urls were annotated variants of `AnyUrl`, which was an alias to `pydantic_core.Url` + + +class AnyHttpUrl(AnyUrl): + """A type that will accept any http or https URL. + + * TLD not required + * Host not required + """ + + _constraints = UrlConstraints(allowed_schemes=['http', 'https']) + + +class HttpUrl(AnyUrl): + """A type that will accept any http or https URL. + + * TLD not required + * Host not required + * Max length 2083 + + ```python + from pydantic import BaseModel, HttpUrl, ValidationError + + class MyModel(BaseModel): + url: HttpUrl + + m = MyModel(url='http://www.example.com') # (1)! + print(m.url) + #> http://www.example.com/ + + try: + MyModel(url='ftp://invalid.url') + except ValidationError as e: + print(e) + ''' + 1 validation error for MyModel + url + URL scheme should be 'http' or 'https' [type=url_scheme, input_value='ftp://invalid.url', input_type=str] + ''' + + try: + MyModel(url='not a url') + except ValidationError as e: + print(e) + ''' + 1 validation error for MyModel + url + Input should be a valid URL, relative URL without a base [type=url_parsing, input_value='not a url', input_type=str] + ''' + ``` + + 1. Note: mypy would prefer `m = MyModel(url=HttpUrl('http://www.example.com'))`, but Pydantic will convert the string to an HttpUrl instance anyway. + + "International domains" (e.g. a URL where the host or TLD includes non-ascii characters) will be encoded via + [punycode](https://en.wikipedia.org/wiki/Punycode) (see + [this article](https://www.xudongz.com/blog/2017/idn-phishing/) for a good description of why this is important): + + ```python + from pydantic import BaseModel, HttpUrl + + class MyModel(BaseModel): + url: HttpUrl + + m1 = MyModel(url='http://puny£code.com') + print(m1.url) + #> http://xn--punycode-eja.com/ + m2 = MyModel(url='https://www.аррӏе.com/') + print(m2.url) + #> https://www.xn--80ak6aa92e.com/ + m3 = MyModel(url='https://www.example.珠宝/') + print(m3.url) + #> https://www.example.xn--pbt977c/ + ``` + + + !!! warning "Underscores in Hostnames" + In Pydantic, underscores are allowed in all parts of a domain except the TLD. + Technically this might be wrong - in theory the hostname cannot have underscores, but subdomains can. + + To explain this; consider the following two cases: + + - `exam_ple.co.uk`: the hostname is `exam_ple`, which should not be allowed since it contains an underscore. + - `foo_bar.example.com` the hostname is `example`, which should be allowed since the underscore is in the subdomain. + + Without having an exhaustive list of TLDs, it would be impossible to differentiate between these two. Therefore + underscores are allowed, but you can always do further validation in a validator if desired. + + Also, Chrome, Firefox, and Safari all currently accept `http://exam_ple.com` as a URL, so we're in good + (or at least big) company. + """ + + _constraints = UrlConstraints(max_length=2083, allowed_schemes=['http', 'https']) + + +class AnyWebsocketUrl(AnyUrl): + """A type that will accept any ws or wss URL. + + * TLD not required + * Host not required + """ + + _constraints = UrlConstraints(allowed_schemes=['ws', 'wss']) + + +class WebsocketUrl(AnyUrl): + """A type that will accept any ws or wss URL. + + * TLD not required + * Host not required + * Max length 2083 + """ + + _constraints = UrlConstraints(max_length=2083, allowed_schemes=['ws', 'wss']) + + +class FileUrl(AnyUrl): + """A type that will accept any file URL. + + * Host not required + """ + + _constraints = UrlConstraints(allowed_schemes=['file']) + + +class FtpUrl(AnyUrl): + """A type that will accept ftp URL. + + * TLD not required + * Host not required + """ + + _constraints = UrlConstraints(allowed_schemes=['ftp']) + + +class PostgresDsn(_BaseMultiHostUrl): + """A type that will accept any Postgres DSN. + + * User info required + * TLD not required + * Host required + * Supports multiple hosts + + If further validation is required, these properties can be used by validators to enforce specific behaviour: + + ```python + from pydantic import ( + BaseModel, + HttpUrl, + PostgresDsn, + ValidationError, + field_validator, + ) + + class MyModel(BaseModel): + url: HttpUrl + + m = MyModel(url='http://www.example.com') + + # the repr() method for a url will display all properties of the url + print(repr(m.url)) + #> HttpUrl('http://www.example.com/') + print(m.url.scheme) + #> http + print(m.url.host) + #> www.example.com + print(m.url.port) + #> 80 + + class MyDatabaseModel(BaseModel): + db: PostgresDsn + + @field_validator('db') + def check_db_name(cls, v): + assert v.path and len(v.path) > 1, 'database must be provided' + return v + + m = MyDatabaseModel(db='postgres://user:pass@localhost:5432/foobar') + print(m.db) + #> postgres://user:pass@localhost:5432/foobar + + try: + MyDatabaseModel(db='postgres://user:pass@localhost:5432') + except ValidationError as e: + print(e) + ''' + 1 validation error for MyDatabaseModel + db + Assertion failed, database must be provided + assert (None) + + where None = PostgresDsn('postgres://user:pass@localhost:5432').path [type=assertion_error, input_value='postgres://user:pass@localhost:5432', input_type=str] + ''' + ``` + """ + + _constraints = UrlConstraints( + host_required=True, + allowed_schemes=[ + 'postgres', + 'postgresql', + 'postgresql+asyncpg', + 'postgresql+pg8000', + 'postgresql+psycopg', + 'postgresql+psycopg2', + 'postgresql+psycopg2cffi', + 'postgresql+py-postgresql', + 'postgresql+pygresql', + ], + ) + + @property + def host(self) -> str: + """The required URL host.""" + return self._url.host # pyright: ignore[reportAttributeAccessIssue] + + +class CockroachDsn(AnyUrl): + """A type that will accept any Cockroach DSN. + + * User info required + * TLD not required + * Host required + """ + + _constraints = UrlConstraints( + host_required=True, + allowed_schemes=[ + 'cockroachdb', + 'cockroachdb+psycopg2', + 'cockroachdb+asyncpg', + ], + ) + + @property + def host(self) -> str: + """The required URL host.""" + return self._url.host # pyright: ignore[reportReturnType] + + +class AmqpDsn(AnyUrl): + """A type that will accept any AMQP DSN. + + * User info required + * TLD not required + * Host not required + """ + + _constraints = UrlConstraints(allowed_schemes=['amqp', 'amqps']) + + +class RedisDsn(AnyUrl): + """A type that will accept any Redis DSN. + + * User info required + * TLD not required + * Host required (e.g., `rediss://:pass@localhost`) + """ + + _constraints = UrlConstraints( + allowed_schemes=['redis', 'rediss'], + default_host='localhost', + default_port=6379, + default_path='/0', + host_required=True, + ) + + @property + def host(self) -> str: + """The required URL host.""" + return self._url.host # pyright: ignore[reportReturnType] + + +class MongoDsn(_BaseMultiHostUrl): + """A type that will accept any MongoDB DSN. + + * User info not required + * Database name not required + * Port not required + * User info may be passed without user part (e.g., `mongodb://mongodb0.example.com:27017`). + + !!! warning + If a port isn't specified, the default MongoDB port `27017` will be used. If this behavior is + undesirable, you can use the following: + + ```python + from typing import Annotated + + from pydantic_core import MultiHostUrl + + from pydantic import UrlConstraints + + MongoDsnNoDefaultPort = Annotated[ + MultiHostUrl, + UrlConstraints(allowed_schemes=['mongodb', 'mongodb+srv']), + ] + ``` + """ + + _constraints = UrlConstraints(allowed_schemes=['mongodb', 'mongodb+srv'], default_port=27017) + + +class KafkaDsn(AnyUrl): + """A type that will accept any Kafka DSN. + + * User info required + * TLD not required + * Host not required + """ + + _constraints = UrlConstraints(allowed_schemes=['kafka'], default_host='localhost', default_port=9092) + + +class NatsDsn(_BaseMultiHostUrl): + """A type that will accept any NATS DSN. + + NATS is a connective technology built for the ever increasingly hyper-connected world. + It is a single technology that enables applications to securely communicate across + any combination of cloud vendors, on-premise, edge, web and mobile, and devices. + More: https://nats.io + """ + + _constraints = UrlConstraints( + allowed_schemes=['nats', 'tls', 'ws', 'wss'], default_host='localhost', default_port=4222 + ) + + +class MySQLDsn(AnyUrl): + """A type that will accept any MySQL DSN. + + * User info required + * TLD not required + * Host not required + """ + + _constraints = UrlConstraints( + allowed_schemes=[ + 'mysql', + 'mysql+mysqlconnector', + 'mysql+aiomysql', + 'mysql+asyncmy', + 'mysql+mysqldb', + 'mysql+pymysql', + 'mysql+cymysql', + 'mysql+pyodbc', + ], + default_port=3306, + host_required=True, + ) + + +class MariaDBDsn(AnyUrl): + """A type that will accept any MariaDB DSN. + + * User info required + * TLD not required + * Host not required + """ + + _constraints = UrlConstraints( + allowed_schemes=['mariadb', 'mariadb+mariadbconnector', 'mariadb+pymysql'], + default_port=3306, + ) + + +class ClickHouseDsn(AnyUrl): + """A type that will accept any ClickHouse DSN. + + * User info required + * TLD not required + * Host not required + """ + + _constraints = UrlConstraints( + allowed_schemes=[ + 'clickhouse+native', + 'clickhouse+asynch', + 'clickhouse+http', + 'clickhouse', + 'clickhouses', + 'clickhousedb', + ], + default_host='localhost', + default_port=9000, + ) + + +class SnowflakeDsn(AnyUrl): + """A type that will accept any Snowflake DSN. + + * User info required + * TLD not required + * Host required + """ + + _constraints = UrlConstraints( + allowed_schemes=['snowflake'], + host_required=True, + ) + + @property + def host(self) -> str: + """The required URL host.""" + return self._url.host # pyright: ignore[reportReturnType] + + +def import_email_validator() -> None: + global email_validator + try: + import email_validator + except ImportError as e: + raise ImportError("email-validator is not installed, run `pip install 'pydantic[email]'`") from e + if not version('email-validator').partition('.')[0] == '2': + raise ImportError('email-validator version >= 2.0 required, run pip install -U email-validator') + + +if TYPE_CHECKING: + EmailStr = Annotated[str, ...] +else: + + class EmailStr: + """ + Info: + To use this type, you need to install the optional + [`email-validator`](https://github.com/JoshData/python-email-validator) package: + + ```bash + pip install email-validator + ``` + + Validate email addresses. + + ```python + from pydantic import BaseModel, EmailStr + + class Model(BaseModel): + email: EmailStr + + print(Model(email='contact@mail.com')) + #> email='contact@mail.com' + ``` + """ # noqa: D212 + + @classmethod + def __get_pydantic_core_schema__( + cls, + _source: type[Any], + _handler: GetCoreSchemaHandler, + ) -> core_schema.CoreSchema: + import_email_validator() + return core_schema.no_info_after_validator_function(cls._validate, core_schema.str_schema()) + + @classmethod + def __get_pydantic_json_schema__( + cls, core_schema: core_schema.CoreSchema, handler: _schema_generation_shared.GetJsonSchemaHandler + ) -> JsonSchemaValue: + field_schema = handler(core_schema) + field_schema.update(type='string', format='email') + return field_schema + + @classmethod + def _validate(cls, input_value: str, /) -> str: + return validate_email(input_value)[1] + + +class NameEmail(_repr.Representation): + """ + Info: + To use this type, you need to install the optional + [`email-validator`](https://github.com/JoshData/python-email-validator) package: + + ```bash + pip install email-validator + ``` + + Validate a name and email address combination, as specified by + [RFC 5322](https://datatracker.ietf.org/doc/html/rfc5322#section-3.4). + + The `NameEmail` has two properties: `name` and `email`. + In case the `name` is not provided, it's inferred from the email address. + + ```python + from pydantic import BaseModel, NameEmail + + class User(BaseModel): + email: NameEmail + + user = User(email='Fred Bloggs ') + print(user.email) + #> Fred Bloggs + print(user.email.name) + #> Fred Bloggs + + user = User(email='fred.bloggs@example.com') + print(user.email) + #> fred.bloggs + print(user.email.name) + #> fred.bloggs + ``` + """ # noqa: D212 + + __slots__ = 'name', 'email' + + def __init__(self, name: str, email: str): + self.name = name + self.email = email + + def __eq__(self, other: Any) -> bool: + return isinstance(other, NameEmail) and (self.name, self.email) == (other.name, other.email) + + @classmethod + def __get_pydantic_json_schema__( + cls, core_schema: core_schema.CoreSchema, handler: _schema_generation_shared.GetJsonSchemaHandler + ) -> JsonSchemaValue: + field_schema = handler(core_schema) + field_schema.update(type='string', format='name-email') + return field_schema + + @classmethod + def __get_pydantic_core_schema__( + cls, + _source: type[Any], + _handler: GetCoreSchemaHandler, + ) -> core_schema.CoreSchema: + import_email_validator() + + return core_schema.no_info_after_validator_function( + cls._validate, + core_schema.json_or_python_schema( + json_schema=core_schema.str_schema(), + python_schema=core_schema.union_schema( + [core_schema.is_instance_schema(cls), core_schema.str_schema()], + custom_error_type='name_email_type', + custom_error_message='Input is not a valid NameEmail', + ), + serialization=core_schema.to_string_ser_schema(), + ), + ) + + @classmethod + def _validate(cls, input_value: Self | str, /) -> Self: + if isinstance(input_value, str): + name, email = validate_email(input_value) + return cls(name, email) + else: + return input_value + + def __str__(self) -> str: + if '@' in self.name: + return f'"{self.name}" <{self.email}>' + + return f'{self.name} <{self.email}>' + + +IPvAnyAddressType: TypeAlias = 'IPv4Address | IPv6Address' +IPvAnyInterfaceType: TypeAlias = 'IPv4Interface | IPv6Interface' +IPvAnyNetworkType: TypeAlias = 'IPv4Network | IPv6Network' + +if TYPE_CHECKING: + IPvAnyAddress = IPvAnyAddressType + IPvAnyInterface = IPvAnyInterfaceType + IPvAnyNetwork = IPvAnyNetworkType +else: + + class IPvAnyAddress: + """Validate an IPv4 or IPv6 address. + + ```python + from pydantic import BaseModel + from pydantic.networks import IPvAnyAddress + + class IpModel(BaseModel): + ip: IPvAnyAddress + + print(IpModel(ip='127.0.0.1')) + #> ip=IPv4Address('127.0.0.1') + + try: + IpModel(ip='http://www.example.com') + except ValueError as e: + print(e.errors()) + ''' + [ + { + 'type': 'ip_any_address', + 'loc': ('ip',), + 'msg': 'value is not a valid IPv4 or IPv6 address', + 'input': 'http://www.example.com', + } + ] + ''' + ``` + """ + + __slots__ = () + + def __new__(cls, value: Any) -> IPvAnyAddressType: + """Validate an IPv4 or IPv6 address.""" + try: + return IPv4Address(value) + except ValueError: + pass + + try: + return IPv6Address(value) + except ValueError: + raise PydanticCustomError('ip_any_address', 'value is not a valid IPv4 or IPv6 address') + + @classmethod + def __get_pydantic_json_schema__( + cls, core_schema: core_schema.CoreSchema, handler: _schema_generation_shared.GetJsonSchemaHandler + ) -> JsonSchemaValue: + field_schema = {} + field_schema.update(type='string', format='ipvanyaddress') + return field_schema + + @classmethod + def __get_pydantic_core_schema__( + cls, + _source: type[Any], + _handler: GetCoreSchemaHandler, + ) -> core_schema.CoreSchema: + return core_schema.no_info_plain_validator_function( + cls._validate, serialization=core_schema.to_string_ser_schema() + ) + + @classmethod + def _validate(cls, input_value: Any, /) -> IPvAnyAddressType: + return cls(input_value) # type: ignore[return-value] + + class IPvAnyInterface: + """Validate an IPv4 or IPv6 interface.""" + + __slots__ = () + + def __new__(cls, value: NetworkType) -> IPvAnyInterfaceType: + """Validate an IPv4 or IPv6 interface.""" + try: + return IPv4Interface(value) + except ValueError: + pass + + try: + return IPv6Interface(value) + except ValueError: + raise PydanticCustomError('ip_any_interface', 'value is not a valid IPv4 or IPv6 interface') + + @classmethod + def __get_pydantic_json_schema__( + cls, core_schema: core_schema.CoreSchema, handler: _schema_generation_shared.GetJsonSchemaHandler + ) -> JsonSchemaValue: + field_schema = {} + field_schema.update(type='string', format='ipvanyinterface') + return field_schema + + @classmethod + def __get_pydantic_core_schema__( + cls, + _source: type[Any], + _handler: GetCoreSchemaHandler, + ) -> core_schema.CoreSchema: + return core_schema.no_info_plain_validator_function( + cls._validate, serialization=core_schema.to_string_ser_schema() + ) + + @classmethod + def _validate(cls, input_value: NetworkType, /) -> IPvAnyInterfaceType: + return cls(input_value) # type: ignore[return-value] + + class IPvAnyNetwork: + """Validate an IPv4 or IPv6 network.""" + + __slots__ = () + + def __new__(cls, value: NetworkType) -> IPvAnyNetworkType: + """Validate an IPv4 or IPv6 network.""" + # Assume IP Network is defined with a default value for `strict` argument. + # Define your own class if you want to specify network address check strictness. + try: + return IPv4Network(value) + except ValueError: + pass + + try: + return IPv6Network(value) + except ValueError: + raise PydanticCustomError('ip_any_network', 'value is not a valid IPv4 or IPv6 network') + + @classmethod + def __get_pydantic_json_schema__( + cls, core_schema: core_schema.CoreSchema, handler: _schema_generation_shared.GetJsonSchemaHandler + ) -> JsonSchemaValue: + field_schema = {} + field_schema.update(type='string', format='ipvanynetwork') + return field_schema + + @classmethod + def __get_pydantic_core_schema__( + cls, + _source: type[Any], + _handler: GetCoreSchemaHandler, + ) -> core_schema.CoreSchema: + return core_schema.no_info_plain_validator_function( + cls._validate, serialization=core_schema.to_string_ser_schema() + ) + + @classmethod + def _validate(cls, input_value: NetworkType, /) -> IPvAnyNetworkType: + return cls(input_value) # type: ignore[return-value] + + +def _build_pretty_email_regex() -> re.Pattern[str]: + name_chars = r'[\w!#$%&\'*+\-/=?^_`{|}~]' + unquoted_name_group = rf'((?:{name_chars}+\s+)*{name_chars}+)' + quoted_name_group = r'"((?:[^"]|\")+)"' + email_group = r'<(.+)>' + return re.compile(rf'\s*(?:{unquoted_name_group}|{quoted_name_group})?\s*{email_group}\s*') + + +pretty_email_regex = _build_pretty_email_regex() + +MAX_EMAIL_LENGTH = 2048 +"""Maximum length for an email. +A somewhat arbitrary but very generous number compared to what is allowed by most implementations. +""" + + +def validate_email(value: str) -> tuple[str, str]: + """Email address validation using [email-validator](https://pypi.org/project/email-validator/). + + Returns: + A tuple containing the local part of the email (or the name for "pretty" email addresses) + and the normalized email. + + Raises: + PydanticCustomError: If the email is invalid. + + Note: + Note that: + + * Raw IP address (literal) domain parts are not allowed. + * `"John Doe "` style "pretty" email addresses are processed. + * Spaces are striped from the beginning and end of addresses, but no error is raised. + """ + if email_validator is None: + import_email_validator() + + if len(value) > MAX_EMAIL_LENGTH: + raise PydanticCustomError( + 'value_error', + 'value is not a valid email address: {reason}', + {'reason': f'Length must not exceed {MAX_EMAIL_LENGTH} characters'}, + ) + + m = pretty_email_regex.fullmatch(value) + name: str | None = None + if m: + unquoted_name, quoted_name, value = m.groups() + name = unquoted_name or quoted_name + + email = value.strip() + + try: + parts = email_validator.validate_email(email, check_deliverability=False) + except email_validator.EmailNotValidError as e: + raise PydanticCustomError( + 'value_error', 'value is not a valid email address: {reason}', {'reason': str(e.args[0])} + ) from e + + email = parts.normalized + assert email is not None + name = name or parts.local_part + return name, email + + +__getattr__ = getattr_migration(__name__) diff --git a/venv/Lib/site-packages/pydantic/parse.py b/venv/Lib/site-packages/pydantic/parse.py new file mode 100644 index 0000000..68b7f04 --- /dev/null +++ b/venv/Lib/site-packages/pydantic/parse.py @@ -0,0 +1,5 @@ +"""The `parse` module is a backport module from V1.""" + +from ._migration import getattr_migration + +__getattr__ = getattr_migration(__name__) diff --git a/venv/Lib/site-packages/pydantic/py.typed b/venv/Lib/site-packages/pydantic/py.typed new file mode 100644 index 0000000000000000000000000000000000000000..06d7405020018ddf3cacee90fd4af10487da3d20 GIT binary patch literal 1024 ScmZQz7zLvtFd70QH3R?z00031 literal 0 HcmV?d00001