Загрузить файлы в «venv/Lib/site-packages/sqlalchemy/connectors»

venv/Lib/site-packages/sqlalchemy/connectors/__init__.py

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+# connectors/__init__.py
+# Copyright (C) 2005-2026 the SQLAlchemy authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of SQLAlchemy and is released under
+# the MIT License: https://www.opensource.org/licenses/mit-license.php
+
+
+from ..engine.interfaces import Dialect
+
+
+class Connector(Dialect):
+    """Base class for dialect mixins, for DBAPIs that work
+    across entirely different database backends.
+
+    Currently the only such mixin is pyodbc.
+
+    """

venv/Lib/site-packages/sqlalchemy/connectors/aioodbc.py

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+# connectors/aioodbc.py
+# Copyright (C) 2005-2026 the SQLAlchemy authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of SQLAlchemy and is released under
+# the MIT License: https://www.opensource.org/licenses/mit-license.php
+# mypy: ignore-errors
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from .asyncio import AsyncAdapt_dbapi_connection
+from .asyncio import AsyncAdapt_dbapi_cursor
+from .asyncio import AsyncAdapt_dbapi_ss_cursor
+from .asyncio import AsyncAdaptFallback_dbapi_connection
+from .pyodbc import PyODBCConnector
+from .. import pool
+from .. import util
+from ..util.concurrency import await_fallback
+from ..util.concurrency import await_only
+
+if TYPE_CHECKING:
+    from ..engine.interfaces import ConnectArgsType
+    from ..engine.url import URL
+
+
+class AsyncAdapt_aioodbc_cursor(AsyncAdapt_dbapi_cursor):
+    __slots__ = ()
+
+    def setinputsizes(self, *inputsizes):
+        # see https://github.com/aio-libs/aioodbc/issues/451
+        return self._cursor._impl.setinputsizes(*inputsizes)
+
+        # how it's supposed to work
+        # return self.await_(self._cursor.setinputsizes(*inputsizes))
+
+    @property
+    def fast_executemany(self):
+        return self._cursor._impl.fast_executemany
+
+    @fast_executemany.setter
+    def fast_executemany(self, value):
+        self._cursor._impl.fast_executemany = value
+
+
+class AsyncAdapt_aioodbc_ss_cursor(
+    AsyncAdapt_aioodbc_cursor, AsyncAdapt_dbapi_ss_cursor
+):
+    __slots__ = ()
+
+
+class AsyncAdapt_aioodbc_connection(AsyncAdapt_dbapi_connection):
+    _cursor_cls = AsyncAdapt_aioodbc_cursor
+    _ss_cursor_cls = AsyncAdapt_aioodbc_ss_cursor
+    __slots__ = ()
+
+    @property
+    def autocommit(self):
+        return self._connection.autocommit
+
+    @autocommit.setter
+    def autocommit(self, value):
+        # https://github.com/aio-libs/aioodbc/issues/448
+        # self._connection.autocommit = value
+
+        self._connection._conn.autocommit = value
+
+    def ping(self, reconnect):
+        return self.await_(self._connection.ping(reconnect))
+
+    def add_output_converter(self, *arg, **kw):
+        self._connection.add_output_converter(*arg, **kw)
+
+    def character_set_name(self):
+        return self._connection.character_set_name()
+
+    def cursor(self, server_side=False):
+        # aioodbc sets connection=None when closed and just fails with
+        # AttributeError here.  Here we use the same ProgrammingError +
+        # message that pyodbc uses, so it triggers is_disconnect() as well.
+        if self._connection.closed:
+            raise self.dbapi.ProgrammingError(
+                "Attempt to use a closed connection."
+            )
+        return super().cursor(server_side=server_side)
+
+    def rollback(self):
+        # aioodbc sets connection=None when closed and just fails with
+        # AttributeError here.  should be a no-op
+        if not self._connection.closed:
+            super().rollback()
+
+    def commit(self):
+        # aioodbc sets connection=None when closed and just fails with
+        # AttributeError here.  should be a no-op
+        if not self._connection.closed:
+            super().commit()
+
+    def close(self):
+        # aioodbc sets connection=None when closed and just fails with
+        # AttributeError here.  should be a no-op
+        if not self._connection.closed:
+            super().close()
+
+
+class AsyncAdaptFallback_aioodbc_connection(
+    AsyncAdaptFallback_dbapi_connection, AsyncAdapt_aioodbc_connection
+):
+    __slots__ = ()
+
+
+class AsyncAdapt_aioodbc_dbapi:
+    def __init__(self, aioodbc, pyodbc):
+        self.aioodbc = aioodbc
+        self.pyodbc = pyodbc
+        self.paramstyle = pyodbc.paramstyle
+        self._init_dbapi_attributes()
+        self.Cursor = AsyncAdapt_dbapi_cursor
+        self.version = pyodbc.version
+
+    def _init_dbapi_attributes(self):
+        for name in (
+            "Warning",
+            "Error",
+            "InterfaceError",
+            "DataError",
+            "DatabaseError",
+            "OperationalError",
+            "InterfaceError",
+            "IntegrityError",
+            "ProgrammingError",
+            "InternalError",
+            "NotSupportedError",
+            "SQL_DRIVER_NAME",
+            "NUMBER",
+            "STRING",
+            "DATETIME",
+            "BINARY",
+            "Binary",
+            "BinaryNull",
+            "SQL_VARCHAR",
+            "SQL_WVARCHAR",
+            "SQL_DECIMAL",
+        ):
+            setattr(self, name, getattr(self.pyodbc, name))
+
+    def connect(self, *arg, **kw):
+        async_fallback = kw.pop("async_fallback", False)
+        creator_fn = kw.pop("async_creator_fn", self.aioodbc.connect)
+
+        if util.asbool(async_fallback):
+            return AsyncAdaptFallback_aioodbc_connection(
+                self,
+                await_fallback(creator_fn(*arg, **kw)),
+            )
+        else:
+            return AsyncAdapt_aioodbc_connection(
+                self,
+                await_only(creator_fn(*arg, **kw)),
+            )
+
+
+class aiodbcConnector(PyODBCConnector):
+    is_async = True
+    supports_statement_cache = True
+
+    supports_server_side_cursors = True
+
+    @classmethod
+    def import_dbapi(cls):
+        return AsyncAdapt_aioodbc_dbapi(
+            __import__("aioodbc"), __import__("pyodbc")
+        )
+
+    def create_connect_args(self, url: URL) -> ConnectArgsType:
+        arg, kw = super().create_connect_args(url)
+        if arg and arg[0]:
+            kw["dsn"] = arg[0]
+
+        return (), kw
+
+    @classmethod
+    def get_pool_class(cls, url):
+        async_fallback = url.query.get("async_fallback", False)
+
+        if util.asbool(async_fallback):
+            return pool.FallbackAsyncAdaptedQueuePool
+        else:
+            return pool.AsyncAdaptedQueuePool
+
+    def get_driver_connection(self, connection):
+        return connection._connection

venv/Lib/site-packages/sqlalchemy/connectors/asyncio.py

@@ -0,0 +1,429 @@
+# connectors/asyncio.py
+# Copyright (C) 2005-2026 the SQLAlchemy authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of SQLAlchemy and is released under
+# the MIT License: https://www.opensource.org/licenses/mit-license.php
+
+"""generic asyncio-adapted versions of DBAPI connection and cursor"""
+
+from __future__ import annotations
+
+import asyncio
+import collections
+import sys
+from typing import Any
+from typing import AsyncIterator
+from typing import Deque
+from typing import Iterator
+from typing import NoReturn
+from typing import Optional
+from typing import Sequence
+from typing import Tuple
+from typing import Type
+from typing import TYPE_CHECKING
+
+from ..engine import AdaptedConnection
+from ..util import EMPTY_DICT
+from ..util.concurrency import await_fallback
+from ..util.concurrency import await_only
+from ..util.concurrency import in_greenlet
+from ..util.typing import Protocol
+
+if TYPE_CHECKING:
+    from ..engine.interfaces import _DBAPICursorDescription
+    from ..engine.interfaces import _DBAPIMultiExecuteParams
+    from ..engine.interfaces import _DBAPISingleExecuteParams
+    from ..engine.interfaces import DBAPIModule
+    from ..util.typing import Self
+
+
+class AsyncIODBAPIConnection(Protocol):
+    """protocol representing an async adapted version of a
+    :pep:`249` database connection.
+
+
+    """
+
+    # note that async DBAPIs dont agree if close() should be awaitable,
+    # so it is omitted here and picked up by the __getattr__ hook below
+
+    async def commit(self) -> None: ...
+
+    def cursor(self, *args: Any, **kwargs: Any) -> AsyncIODBAPICursor: ...
+
+    async def rollback(self) -> None: ...
+
+    def __getattr__(self, key: str) -> Any: ...
+
+    def __setattr__(self, key: str, value: Any) -> None: ...
+
+
+class AsyncIODBAPICursor(Protocol):
+    """protocol representing an async adapted version
+    of a :pep:`249` database cursor.
+
+
+    """
+
+    def __aenter__(self) -> Any: ...
+
+    @property
+    def description(
+        self,
+    ) -> _DBAPICursorDescription:
+        """The description attribute of the Cursor."""
+        ...
+
+    @property
+    def rowcount(self) -> int: ...
+
+    arraysize: int
+
+    lastrowid: int
+
+    async def close(self) -> None: ...
+
+    async def execute(
+        self,
+        operation: Any,
+        parameters: Optional[_DBAPISingleExecuteParams] = None,
+    ) -> Any: ...
+
+    async def executemany(
+        self,
+        operation: Any,
+        parameters: _DBAPIMultiExecuteParams,
+    ) -> Any: ...
+
+    async def fetchone(self) -> Optional[Any]: ...
+
+    async def fetchmany(self, size: Optional[int] = ...) -> Sequence[Any]: ...
+
+    async def fetchall(self) -> Sequence[Any]: ...
+
+    async def setinputsizes(self, sizes: Sequence[Any]) -> None: ...
+
+    def setoutputsize(self, size: Any, column: Any) -> None: ...
+
+    async def callproc(
+        self, procname: str, parameters: Sequence[Any] = ...
+    ) -> Any: ...
+
+    async def nextset(self) -> Optional[bool]: ...
+
+    def __aiter__(self) -> AsyncIterator[Any]: ...
+
+
+class AsyncAdapt_dbapi_module:
+    if TYPE_CHECKING:
+        Error = DBAPIModule.Error
+        OperationalError = DBAPIModule.OperationalError
+        InterfaceError = DBAPIModule.InterfaceError
+        IntegrityError = DBAPIModule.IntegrityError
+
+        def __getattr__(self, key: str) -> Any: ...
+
+
+class AsyncAdapt_dbapi_cursor:
+    server_side = False
+    __slots__ = (
+        "_adapt_connection",
+        "_connection",
+        "await_",
+        "_cursor",
+        "_rows",
+        "_soft_closed_memoized",
+    )
+
+    _awaitable_cursor_close: bool = True
+
+    _cursor: AsyncIODBAPICursor
+    _adapt_connection: AsyncAdapt_dbapi_connection
+    _connection: AsyncIODBAPIConnection
+    _rows: Deque[Any]
+
+    def __init__(self, adapt_connection: AsyncAdapt_dbapi_connection):
+        self._adapt_connection = adapt_connection
+        self._connection = adapt_connection._connection
+
+        self.await_ = adapt_connection.await_
+
+        cursor = self._make_new_cursor(self._connection)
+        self._cursor = self._aenter_cursor(cursor)
+        self._soft_closed_memoized = EMPTY_DICT
+        if not self.server_side:
+            self._rows = collections.deque()
+
+    def _aenter_cursor(self, cursor: AsyncIODBAPICursor) -> AsyncIODBAPICursor:
+        return self.await_(cursor.__aenter__())  # type: ignore[no-any-return]
+
+    def _make_new_cursor(
+        self, connection: AsyncIODBAPIConnection
+    ) -> AsyncIODBAPICursor:
+        return connection.cursor()
+
+    @property
+    def description(self) -> Optional[_DBAPICursorDescription]:
+        if "description" in self._soft_closed_memoized:
+            return self._soft_closed_memoized["description"]  # type: ignore[no-any-return]  # noqa: E501
+        return self._cursor.description
+
+    @property
+    def rowcount(self) -> int:
+        return self._cursor.rowcount
+
+    @property
+    def arraysize(self) -> int:
+        return self._cursor.arraysize
+
+    @arraysize.setter
+    def arraysize(self, value: int) -> None:
+        self._cursor.arraysize = value
+
+    @property
+    def lastrowid(self) -> int:
+        return self._cursor.lastrowid
+
+    async def _async_soft_close(self) -> None:
+        """close the cursor but keep the results pending, and memoize the
+        description.
+
+        .. versionadded:: 2.0.44
+
+        """
+
+        if not self._awaitable_cursor_close or self.server_side:
+            return
+
+        self._soft_closed_memoized = self._soft_closed_memoized.union(
+            {
+                "description": self._cursor.description,
+            }
+        )
+        await self._cursor.close()
+
+    def close(self) -> None:
+        self._rows.clear()
+
+        # updated as of 2.0.44
+        # try to "close" the cursor based on what we know about the driver
+        # and if we are able to.  otherwise, hope that the asyncio
+        # extension called _async_soft_close() if the cursor is going into
+        # a sync context
+        if self._cursor is None or bool(self._soft_closed_memoized):
+            return
+
+        if not self._awaitable_cursor_close:
+            self._cursor.close()  # type: ignore[unused-coroutine]
+        elif in_greenlet():
+            self.await_(self._cursor.close())
+
+    def execute(
+        self,
+        operation: Any,
+        parameters: Optional[_DBAPISingleExecuteParams] = None,
+    ) -> Any:
+        try:
+            return self.await_(self._execute_async(operation, parameters))
+        except Exception as error:
+            self._adapt_connection._handle_exception(error)
+
+    def executemany(
+        self,
+        operation: Any,
+        seq_of_parameters: _DBAPIMultiExecuteParams,
+    ) -> Any:
+        try:
+            return self.await_(
+                self._executemany_async(operation, seq_of_parameters)
+            )
+        except Exception as error:
+            self._adapt_connection._handle_exception(error)
+
+    async def _execute_async(
+        self, operation: Any, parameters: Optional[_DBAPISingleExecuteParams]
+    ) -> Any:
+        async with self._adapt_connection._execute_mutex:
+            if parameters is None:
+                result = await self._cursor.execute(operation)
+            else:
+                result = await self._cursor.execute(operation, parameters)
+
+            if self._cursor.description and not self.server_side:
+                self._rows = collections.deque(await self._cursor.fetchall())
+            return result
+
+    async def _executemany_async(
+        self,
+        operation: Any,
+        seq_of_parameters: _DBAPIMultiExecuteParams,
+    ) -> Any:
+        async with self._adapt_connection._execute_mutex:
+            return await self._cursor.executemany(operation, seq_of_parameters)
+
+    def nextset(self) -> None:
+        self.await_(self._cursor.nextset())
+        if self._cursor.description and not self.server_side:
+            self._rows = collections.deque(
+                self.await_(self._cursor.fetchall())
+            )
+
+    def setinputsizes(self, *inputsizes: Any) -> None:
+        # NOTE: this is overridden in aioodbc due to
+        # see https://github.com/aio-libs/aioodbc/issues/451
+        # right now
+
+        return self.await_(self._cursor.setinputsizes(*inputsizes))
+
+    def __enter__(self) -> Self:
+        return self
+
+    def __exit__(self, type_: Any, value: Any, traceback: Any) -> None:
+        self.close()
+
+    def __iter__(self) -> Iterator[Any]:
+        while self._rows:
+            yield self._rows.popleft()
+
+    def fetchone(self) -> Optional[Any]:
+        if self._rows:
+            return self._rows.popleft()
+        else:
+            return None
+
+    def fetchmany(self, size: Optional[int] = None) -> Sequence[Any]:
+        if size is None:
+            size = self.arraysize
+        rr = self._rows
+        return [rr.popleft() for _ in range(min(size, len(rr)))]
+
+    def fetchall(self) -> Sequence[Any]:
+        retval = list(self._rows)
+        self._rows.clear()
+        return retval
+
+
+class AsyncAdapt_dbapi_ss_cursor(AsyncAdapt_dbapi_cursor):
+    __slots__ = ()
+    server_side = True
+
+    def close(self) -> None:
+        if self._cursor is not None:
+            self.await_(self._cursor.close())
+            self._cursor = None  # type: ignore
+
+    def fetchone(self) -> Optional[Any]:
+        return self.await_(self._cursor.fetchone())
+
+    def fetchmany(self, size: Optional[int] = None) -> Any:
+        return self.await_(self._cursor.fetchmany(size=size))
+
+    def fetchall(self) -> Sequence[Any]:
+        return self.await_(self._cursor.fetchall())
+
+    def __iter__(self) -> Iterator[Any]:
+        iterator = self._cursor.__aiter__()
+        while True:
+            try:
+                yield self.await_(iterator.__anext__())
+            except StopAsyncIteration:
+                break
+
+
+class AsyncAdapt_dbapi_connection(AdaptedConnection):
+    _cursor_cls = AsyncAdapt_dbapi_cursor
+    _ss_cursor_cls = AsyncAdapt_dbapi_ss_cursor
+
+    await_ = staticmethod(await_only)
+
+    __slots__ = ("dbapi", "_execute_mutex")
+
+    _connection: AsyncIODBAPIConnection
+
+    def __init__(self, dbapi: Any, connection: AsyncIODBAPIConnection):
+        self.dbapi = dbapi
+        self._connection = connection
+        self._execute_mutex = asyncio.Lock()
+
+    def cursor(self, server_side: bool = False) -> AsyncAdapt_dbapi_cursor:
+        if server_side:
+            return self._ss_cursor_cls(self)
+        else:
+            return self._cursor_cls(self)
+
+    def execute(
+        self,
+        operation: Any,
+        parameters: Optional[_DBAPISingleExecuteParams] = None,
+    ) -> Any:
+        """lots of DBAPIs seem to provide this, so include it"""
+        cursor = self.cursor()
+        cursor.execute(operation, parameters)
+        return cursor
+
+    def _handle_exception(self, error: Exception) -> NoReturn:
+        exc_info = sys.exc_info()
+
+        raise error.with_traceback(exc_info[2])
+
+    def rollback(self) -> None:
+        try:
+            self.await_(self._connection.rollback())
+        except Exception as error:
+            self._handle_exception(error)
+
+    def commit(self) -> None:
+        try:
+            self.await_(self._connection.commit())
+        except Exception as error:
+            self._handle_exception(error)
+
+    def close(self) -> None:
+        self.await_(self._connection.close())
+
+
+class AsyncAdaptFallback_dbapi_connection(AsyncAdapt_dbapi_connection):
+    __slots__ = ()
+
+    await_ = staticmethod(await_fallback)
+
+
+class AsyncAdapt_terminate:
+    """Mixin for a AsyncAdapt_dbapi_connection to add terminate support."""
+
+    __slots__ = ()
+
+    def terminate(self) -> None:
+        if in_greenlet():
+            # in a greenlet; this is the connection was invalidated case.
+            try:
+                # try to gracefully close; see #10717
+                self.await_(asyncio.shield(self._terminate_graceful_close()))  # type: ignore[attr-defined] # noqa: E501
+            except self._terminate_handled_exceptions() as e:
+                # in the case where we are recycling an old connection
+                # that may have already been disconnected, close() will
+                # fail.  In this case, terminate
+                # the connection without any further waiting.
+                # see issue #8419
+                self._terminate_force_close()
+                if isinstance(e, asyncio.CancelledError):
+                    # re-raise CancelledError if we were cancelled
+                    raise
+        else:
+            # not in a greenlet; this is the gc cleanup case
+            self._terminate_force_close()
+
+    def _terminate_handled_exceptions(self) -> Tuple[Type[BaseException], ...]:
+        """Returns the exceptions that should be handled when
+        calling _graceful_close.
+        """
+        return (asyncio.TimeoutError, asyncio.CancelledError, OSError)
+
+    async def _terminate_graceful_close(self) -> None:
+        """Try to close connection gracefully"""
+        raise NotImplementedError
+
+    def _terminate_force_close(self) -> None:
+        """Terminate the connection"""
+        raise NotImplementedError

venv/Lib/site-packages/sqlalchemy/connectors/pyodbc.py

@@ -0,0 +1,250 @@
+# connectors/pyodbc.py
+# Copyright (C) 2005-2026 the SQLAlchemy authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of SQLAlchemy and is released under
+# the MIT License: https://www.opensource.org/licenses/mit-license.php
+
+from __future__ import annotations
+
+import re
+import typing
+from typing import Any
+from typing import Dict
+from typing import List
+from typing import Optional
+from typing import Tuple
+from typing import Union
+from urllib.parse import unquote_plus
+
+from . import Connector
+from .. import ExecutionContext
+from .. import pool
+from .. import util
+from ..engine import ConnectArgsType
+from ..engine import Connection
+from ..engine import interfaces
+from ..engine import URL
+from ..sql.type_api import TypeEngine
+
+if typing.TYPE_CHECKING:
+    from ..engine.interfaces import DBAPIModule
+    from ..engine.interfaces import IsolationLevel
+
+
+class PyODBCConnector(Connector):
+    driver = "pyodbc"
+
+    # this is no longer False for pyodbc in general
+    supports_sane_rowcount_returning = True
+    supports_sane_multi_rowcount = False
+
+    supports_native_decimal = True
+    default_paramstyle = "named"
+
+    fast_executemany = False
+
+    # for non-DSN connections, this *may* be used to
+    # hold the desired driver name
+    pyodbc_driver_name: Optional[str] = None
+
+    def __init__(self, use_setinputsizes: bool = False, **kw: Any):
+        super().__init__(**kw)
+        if use_setinputsizes:
+            self.bind_typing = interfaces.BindTyping.SETINPUTSIZES
+
+    @classmethod
+    def import_dbapi(cls) -> DBAPIModule:
+        return __import__("pyodbc")
+
+    def create_connect_args(self, url: URL) -> ConnectArgsType:
+        opts = url.translate_connect_args(username="user")
+        opts.update(url.query)
+
+        keys = opts
+
+        query = url.query
+
+        connect_args: Dict[str, Any] = {}
+        connectors: List[str]
+
+        for param in ("ansi", "unicode_results", "autocommit"):
+            if param in keys:
+                connect_args[param] = util.asbool(keys.pop(param))
+
+        if "odbc_connect" in keys:
+            connectors = [unquote_plus(keys.pop("odbc_connect"))]
+        else:
+
+            def check_quote(token: str) -> str:
+                if ";" in str(token) or str(token).startswith("{"):
+                    token = "{%s}" % token.replace("}", "}}")
+                return token
+
+            keys = {k: check_quote(v) for k, v in keys.items()}
+
+            dsn_connection = "dsn" in keys or (
+                "host" in keys and "database" not in keys
+            )
+            if dsn_connection:
+                connectors = [
+                    "dsn=%s" % (keys.pop("host", "") or keys.pop("dsn", ""))
+                ]
+            else:
+                port = ""
+                if "port" in keys and "port" not in query:
+                    port = ",%d" % int(keys.pop("port"))
+
+                connectors = []
+                driver = keys.pop("driver", self.pyodbc_driver_name)
+                if driver is None and keys:
+                    # note if keys is empty, this is a totally blank URL
+                    util.warn(
+                        "No driver name specified; "
+                        "this is expected by PyODBC when using "
+                        "DSN-less connections"
+                    )
+                else:
+                    connectors.append("DRIVER={%s}" % driver)
+
+                connectors.extend(
+                    [
+                        "Server=%s%s" % (keys.pop("host", ""), port),
+                        "Database=%s" % keys.pop("database", ""),
+                    ]
+                )
+
+            user = keys.pop("user", None)
+            if user:
+                connectors.append("UID=%s" % user)
+                pwd = keys.pop("password", "")
+                if pwd:
+                    connectors.append("PWD=%s" % pwd)
+            else:
+                authentication = keys.pop("authentication", None)
+                if authentication:
+                    connectors.append("Authentication=%s" % authentication)
+                else:
+                    connectors.append("Trusted_Connection=Yes")
+
+            # if set to 'Yes', the ODBC layer will try to automagically
+            # convert textual data from your database encoding to your
+            # client encoding.  This should obviously be set to 'No' if
+            # you query a cp1253 encoded database from a latin1 client...
+            if "odbc_autotranslate" in keys:
+                connectors.append(
+                    "AutoTranslate=%s" % keys.pop("odbc_autotranslate")
+                )
+
+            connectors.extend(["%s=%s" % (k, v) for k, v in keys.items()])
+
+        return ((";".join(connectors),), connect_args)
+
+    def is_disconnect(
+        self,
+        e: Exception,
+        connection: Optional[
+            Union[pool.PoolProxiedConnection, interfaces.DBAPIConnection]
+        ],
+        cursor: Optional[interfaces.DBAPICursor],
+    ) -> bool:
+        if isinstance(e, self.loaded_dbapi.ProgrammingError):
+            return "The cursor's connection has been closed." in str(
+                e
+            ) or "Attempt to use a closed connection." in str(e)
+        else:
+            return False
+
+    def _dbapi_version(self) -> interfaces.VersionInfoType:
+        if not self.dbapi:
+            return ()
+        return self._parse_dbapi_version(self.dbapi.version)
+
+    def _parse_dbapi_version(self, vers: str) -> interfaces.VersionInfoType:
+        m = re.match(r"(?:py.*-)?([\d\.]+)(?:-(\w+))?", vers)
+        if not m:
+            return ()
+        vers_tuple: interfaces.VersionInfoType = tuple(
+            [int(x) for x in m.group(1).split(".")]
+        )
+        if m.group(2):
+            vers_tuple += (m.group(2),)
+        return vers_tuple
+
+    def _get_server_version_info(
+        self, connection: Connection
+    ) -> interfaces.VersionInfoType:
+        # NOTE: this function is not reliable, particularly when
+        # freetds is in use.   Implement database-specific server version
+        # queries.
+        dbapi_con = connection.connection.dbapi_connection
+        version: Tuple[Union[int, str], ...] = ()
+        r = re.compile(r"[.\-]")
+        for n in r.split(dbapi_con.getinfo(self.dbapi.SQL_DBMS_VER)):  # type: ignore[union-attr]  # noqa: E501
+            try:
+                version += (int(n),)
+            except ValueError:
+                pass
+        return tuple(version)
+
+    def do_set_input_sizes(
+        self,
+        cursor: interfaces.DBAPICursor,
+        list_of_tuples: List[Tuple[str, Any, TypeEngine[Any]]],
+        context: ExecutionContext,
+    ) -> None:
+        # the rules for these types seems a little strange, as you can pass
+        # non-tuples as well as tuples, however it seems to assume "0"
+        # for the subsequent values if you don't pass a tuple which fails
+        # for types such as pyodbc.SQL_WLONGVARCHAR, which is the datatype
+        # that ticket #5649 is targeting.
+
+        # NOTE: as of #6058, this won't be called if the use_setinputsizes
+        # parameter were not passed to the dialect, or if no types were
+        # specified in list_of_tuples
+
+        # as of #8177 for 2.0 we assume use_setinputsizes=True and only
+        # omit the setinputsizes calls for .executemany() with
+        # fast_executemany=True
+
+        if (
+            context.execute_style is interfaces.ExecuteStyle.EXECUTEMANY
+            and self.fast_executemany
+        ):
+            return
+
+        cursor.setinputsizes(
+            [
+                (
+                    (dbtype, None, None)
+                    if not isinstance(dbtype, tuple)
+                    else dbtype
+                )
+                for key, dbtype, sqltype in list_of_tuples
+            ]
+        )
+
+    def get_isolation_level_values(
+        self, dbapi_conn: interfaces.DBAPIConnection
+    ) -> List[IsolationLevel]:
+        return [*super().get_isolation_level_values(dbapi_conn), "AUTOCOMMIT"]
+
+    def set_isolation_level(
+        self,
+        dbapi_connection: interfaces.DBAPIConnection,
+        level: IsolationLevel,
+    ) -> None:
+        # adjust for ConnectionFairy being present
+        # allows attribute set e.g. "connection.autocommit = True"
+        # to work properly
+
+        if level == "AUTOCOMMIT":
+            dbapi_connection.autocommit = True
+        else:
+            dbapi_connection.autocommit = False
+            super().set_isolation_level(dbapi_connection, level)
+
+    def detect_autocommit_setting(
+        self, dbapi_conn: interfaces.DBAPIConnection
+    ) -> bool:
+        return bool(dbapi_conn.autocommit)