o gF@sddlmZddlZddlZddlmZddlmZddlmZddlmZddlm Z ddlm Z dd lm Z dd lm Z dd lm Z dd lmZdd lmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddl m!Z!ddl m"Z#ddl m$Z%ddl m&Z&dd l'm(Z(dd!l'm)Z)dd"lm*Z*dd#l+m,Z,dd$l-m.Z.dd%l-m/Z/erCdd&l0m1Z1dd'l2m3Z3dd(l2m4Z4dd)l2m5Z5dd*l2m6Z6dd+l2m7Z7dd,l2m8Z8dd-l2m9Z9dd.l2m:Z:dd/l2m;Z;dd0lm?Z?dd2l@mAZAdd3l@mBZBdd4lCmDZDdd5lEmFZFdd6lGmHZHe/d7ZIed8ed9ZJdkd@dAZK BdldmdHdIZLdndKdLZMGdMdNdNZNejOe!dOdPgggdQdRGdSdTdTee!edTeNZPejOe&dUdVggdWgdXdRGdYd?d?ee&eNZQGdZd[d[ee)ed[ZRe dod^d_ZSe dpdad_ZSdqddd_ZSeTePdrdgdhZUeTeQdsdidjZVdS)t) annotationsN)Any) AsyncIterator)Callable)Dict) Generator)NoReturn)Optional)overload)Tuple)Type) TYPE_CHECKING)TypeVar)Union)exc)asyncstartablecontext)GeneratorStartableContext)ProxyComparable)StartableContext)_ensure_sync_result) AsyncResult)AsyncScalarResult) inspection)util) Connection) create_engine)create_pool_from_url)Engine)NestedTransaction) Transaction) ArgumentError)greenlet_spawn) Concatenate) ParamSpec) CursorResult)_CoreAnyExecuteParams)_CoreSingleExecuteParams)_DBAPIAnyExecuteParams)_ExecuteOptions)CompiledCacheType)CoreExecuteOptionsParameter)Dialect)IsolationLevel)SchemaTranslateMapType) ScalarResult)URL)Pool)PoolProxiedConnection) _InfoType) Executable)TypedReturnsRows_P_T)boundurlUnion[str, URL]kwrreturn AsyncEnginec sr|ddr tdd|d<|ddr-|ddr!td dfd d }||d<t|fi|tS)a Create a new async engine instance. Arguments passed to :func:`_asyncio.create_async_engine` are mostly identical to those passed to the :func:`_sa.create_engine` function. The specified dialect must be an asyncio-compatible dialect such as :ref:`dialect-postgresql-asyncpg`. .. versionadded:: 1.4 :param async_creator: an async callable which returns a driver-level asyncio connection. If given, the function should take no arguments, and return a new asyncio connection from the underlying asyncio database driver; the connection will be wrapped in the appropriate structures to be used with the :class:`.AsyncEngine`. Note that the parameters specified in the URL are not applied here, and the creator function should use its own connection parameters. This parameter is the asyncio equivalent of the :paramref:`_sa.create_engine.creator` parameter of the :func:`_sa.create_engine` function. .. versionadded:: 2.0.16 server_side_cursorsFz}Can't set server_side_cursors for async engine globally; use the connection.stream() method for an async streaming result setT _is_async async_creatorNcreatorz?Can only specify one of 'async_creator' or 'creator', not both.r=rcsjjjdS)N)async_creator_fn)dialectdbapiconnectrA sync_enginerG_/var/www/html/ecg_monitoring/venv/lib/python3.10/site-packages/sqlalchemy/ext/asyncio/engine.pyrBosz$create_async_engine..creatorr=r)get async_excAsyncMethodRequiredpopr"_create_enginer>)r:r<rBrGrHrJcreate_async_engineFs   rQ sqlalchemy. configurationDict[str, Any]prefixstrkwargsc sBfdd|D}d|d<|||d}t|fi|S)aCreate a new AsyncEngine instance using a configuration dictionary. This function is analogous to the :func:`_sa.engine_from_config` function in SQLAlchemy Core, except that the requested dialect must be an asyncio-compatible dialect such as :ref:`dialect-postgresql-asyncpg`. The argument signature of the function is identical to that of :func:`_sa.engine_from_config`. .. versionadded:: 1.4.29 cs,i|]\}}|r|td|qSN) startswithlen).0keyvaluerUrGrJ s z,async_engine_from_config..T_coerce_configr:)itemsupdaterOrQ)rSrUrWoptionsr:rGr^rJasync_engine_from_config|s   rdr2cKsd|d<t|fi|S)aVCreate a new async engine instance. Arguments passed to :func:`_asyncio.create_async_pool_from_url` are mostly identical to those passed to the :func:`_sa.create_pool_from_url` function. The specified dialect must be an asyncio-compatible dialect such as :ref:`dialect-postgresql-asyncpg`. .. versionadded:: 2.0.10 Tr@)_create_pool_from_url)r:rWrGrGrJcreate_async_pool_from_urls rfc@seZdZdZedddZdS)AsyncConnectable)_slots_dispatch __weakref__r=rcCstd)Nzasynchronous events are not implemented at this time. Apply synchronous listeners to the AsyncEngine.sync_engine or AsyncConnection.sync_connection attributes.)NotImplementedError)clsrGrGrJ_no_async_engine_eventssz(AsyncConnectable._no_async_engine_eventsNr=r)__name__ __module__ __qualname__ __slots__ classmethodrlrGrGrGrJrgsrgz:class:`_engine.Connection`z!:class:`_asyncio.AsyncConnection`)closed invalidatedrDdefault_isolation_level) classmethodsmethods attributesc @seZdZUdZdZ dddd Zded< d ed < edddZ ddddZ e dddZ dddZ e jdddZe jddd Zdd"d#Zdd$d%Z ddd)d*Zdd,d-Zdd.d/Zdd0d1Zdd3d4Zdd5d6Zed7d7d7ddd7d7d7d7dd8 ddIdJZeddKdJZddLdJZddMdNZddOdPZddQdRZddSdTZ  ddd[d\Ze ddd]ddadbZ e ddd]ddedbZ e! ddd]ddgdbZ e ddd]ddidjZ"e ddd]ddkdjZ" ddd]ddldjZ"e ddd]ddpdqZ#e ddd]ddrdqZ# ddd]ddsdqZ#e ddd]ddudvZ$e ddd]ddxdvZ$ ddd]ddydvZ$e ddd]dd{d|Z%e ddd]dd~d|Z%e! ddd]ddd|Z%dddZ&dddZ'dddZ(e dddZ)e dddZ*e dddZ+e+j,dddZ+e dddZ-dS)AsyncConnectionaAn asyncio proxy for a :class:`_engine.Connection`. :class:`_asyncio.AsyncConnection` is acquired using the :meth:`_asyncio.AsyncEngine.connect` method of :class:`_asyncio.AsyncEngine`:: from sqlalchemy.ext.asyncio import create_async_engine engine = create_async_engine("postgresql+asyncpg://user:pass@host/dbname") async with engine.connect() as conn: result = await conn.execute(select(table)) .. versionadded:: 1.4 )enginerIsync_connectionN async_enginer>r{Optional[Connection]cCs||_|j|_|||_dSrX)rzrI_assign_proxiedr{)selfr|r{rGrGrJ__init__szAsyncConnection.__init__rrItargetrr=cCstt|j|SrX)ryr>_retrieve_proxy_for_targetrzrkrrGrGrJ_regenerate_proxy_for_targets z,AsyncConnection._regenerate_proxy_for_targetF is_ctxmanagerboolcs0|jr td|t|jjIdH|_|S)zzStart this :class:`_asyncio.AsyncConnection` object's context outside of using a Python ``with:`` block. zconnection is already startedN)r{rInvalidRequestErrorr~r#rIrFrrrGrGrJstarts zAsyncConnection.startrcCs td)zeNot implemented for async; call :meth:`_asyncio.AsyncConnection.get_raw_connection`. zAsyncConnection.connection accessor is not implemented as the attribute may need to reconnect on an invalidated connection. Use the get_raw_connection() method.)rrrrGrGrJ connectionszAsyncConnection.connectionr3cstt|jdIdHS)aReturn the pooled DBAPI-level connection in use by this :class:`_asyncio.AsyncConnection`. This is a SQLAlchemy connection-pool proxied connection which then has the attribute :attr:`_pool._ConnectionFairy.driver_connection` that refers to the actual driver connection. Its :attr:`_pool._ConnectionFairy.dbapi_connection` refers instead to an :class:`_engine.AdaptedConnection` instance that adapts the driver connection to the DBAPI protocol. rN)r#getattr_proxiedrrGrGrJget_raw_connection!sz"AsyncConnection.get_raw_connectionr4cC|jjS)aReturn the :attr:`_engine.Connection.info` dictionary of the underlying :class:`_engine.Connection`. This dictionary is freely writable for user-defined state to be associated with the database connection. This attribute is only available if the :class:`.AsyncConnection` is currently connected. If the :attr:`.AsyncConnection.closed` attribute is ``True``, then accessing this attribute will raise :class:`.ResourceClosedError`. .. versionadded:: 1.4.0b2 )rinforrGrGrJr1szAsyncConnection.infocC|js||jSrX)r{_raise_for_not_startedrrGrGrJrCzAsyncConnection._proxiedAsyncTransactioncCs|jsJt|S)z1Begin a transaction prior to autobegin occurring.rrrrGrGrJbeginIs zAsyncConnection.begincCs|jsJt|ddS)z;Begin a nested transaction and return a transaction handle.T)nestedrrrGrGrJ begin_nestedNs  zAsyncConnection.begin_nested exceptionOptional[BaseException]Nonecst|jj|dIdHS)zInvalidate the underlying DBAPI connection associated with this :class:`_engine.Connection`. See the method :meth:`_engine.Connection.invalidate` for full detail on this method. )rN)r#r invalidate)rrrGrGrJrSs  zAsyncConnection.invalidater.cst|jjIdHSrX)r#rget_isolation_levelrrGrGrJrbsz#AsyncConnection.get_isolation_levelcC |jS)z,Return True if a transaction is in progress.)rin_transactionrrGrGrJres zAsyncConnection.in_transactioncCr)zYReturn True if a transaction is in progress. .. versionadded:: 1.4.0b2 )rin_nested_transactionrrGrGrJrjs z%AsyncConnection.in_nested_transactionOptional[AsyncTransaction]cC |j}|durt|SdS)aReturn an :class:`.AsyncTransaction` representing the current transaction, if any. This makes use of the underlying synchronous connection's :meth:`_engine.Connection.get_transaction` method to get the current :class:`_engine.Transaction`, which is then proxied in a new :class:`.AsyncTransaction` object. .. versionadded:: 1.4.0b2 N)rget_transactionrrrtransrGrGrJrr  zAsyncConnection.get_transactioncCr)aReturn an :class:`.AsyncTransaction` representing the current nested (savepoint) transaction, if any. This makes use of the underlying synchronous connection's :meth:`_engine.Connection.get_nested_transaction` method to get the current :class:`_engine.Transaction`, which is then proxied in a new :class:`.AsyncTransaction` object. .. versionadded:: 1.4.0b2 N)rget_nested_transactionrrrrGrGrJrrz&AsyncConnection.get_nested_transaction.) compiled_cache logging_tokenisolation_level no_parametersstream_resultsmax_row_buffer yield_perinsertmanyvalues_page_sizeschema_translate_mappreserve_rowcountrOptional[CompiledCacheType]rrVrrrrintrrr Optional[SchemaTranslateMapType]roptrc dSrXrG) rrrrrrrrrrrrrGrGrJexecution_optionssz!AsyncConnection.execution_optionscrrXrGrrrGrGrJrscs0|j}t|jfi|IdH}||usJ|S)a'Set non-SQL options for the connection which take effect during execution. This returns this :class:`_asyncio.AsyncConnection` object with the new options added. See :meth:`_engine.Connection.execution_options` for full details on this method. N)rr#r)rrconnc2rGrGrJrs   ct|jjIdHdS)aCommit the transaction that is currently in progress. This method commits the current transaction if one has been started. If no transaction was started, the method has no effect, assuming the connection is in a non-invalidated state. A transaction is begun on a :class:`_engine.Connection` automatically whenever a statement is first executed, or when the :meth:`_engine.Connection.begin` method is called. Nr#rcommitrrGrGrJrs zAsyncConnection.commitcr)a&Roll back the transaction that is currently in progress. This method rolls back the current transaction if one has been started. If no transaction was started, the method has no effect. If a transaction was started and the connection is in an invalidated state, the transaction is cleared using this method. A transaction is begun on a :class:`_engine.Connection` automatically whenever a statement is first executed, or when the :meth:`_engine.Connection.begin` method is called. Nr#rrollbackrrGrGrJrszAsyncConnection.rollbackcr)zClose this :class:`_asyncio.AsyncConnection`. This has the effect of also rolling back the transaction if one is in place. Nr#rcloserrGrGrJrszAsyncConnection.closecs|IdHdS)aA synonym for :meth:`_asyncio.AsyncConnection.close`. The :meth:`_asyncio.AsyncConnection.aclose` name is specifically to support the Python standard library ``@contextlib.aclosing`` context manager function. .. versionadded:: 2.0.20 NrrrGrGrJacloses zAsyncConnection.aclose statement parameters Optional[_DBAPIAnyExecuteParams]r%Optional[CoreExecuteOptionsParameter]CursorResult[Any]c0t|jj|||ddIdH}t||jIdHS)zaExecutes a driver-level SQL string and return buffered :class:`_engine.Result`. T)_require_awaitN)r#rexec_driver_sqlrrrrrresultrGrGrJrs  zAsyncConnection.exec_driver_sqlrTypedReturnsRows[_T]Optional[_CoreAnyExecuteParams]*GeneratorStartableContext[AsyncResult[_T]]cCdSrXrGrrrrrGrGrJstreamzAsyncConnection.streamr5+GeneratorStartableContext[AsyncResult[Any]]cCrrXrGrrGrGrJrrAsyncIterator[AsyncResult[Any]]c Cs|jjs tdt|jj||tj |ddiddIdH}|j j s%Jt |}z|VWn t y8YdSwt|}t|IdHdS)aKExecute a statement and return an awaitable yielding a :class:`_asyncio.AsyncResult` object. E.g.:: result = await conn.stream(stmt) async for row in result: print(f"{row}") The :meth:`.AsyncConnection.stream` method supports optional context manager use against the :class:`.AsyncResult` object, as in:: async with conn.stream(stmt) as result: async for row in result: print(f"{row}") In the above pattern, the :meth:`.AsyncResult.close` method is invoked unconditionally, even if the iterator is interrupted by an exception throw. Context manager use remains optional, however, and the function may be called in either an ``async with fn():`` or ``await fn()`` style. .. versionadded:: 2.0.0b3 added context manager support :return: an awaitable object that will yield an :class:`_asyncio.AsyncResult` object. .. seealso:: :meth:`.AsyncConnection.stream_scalars` zmCant use `stream` or `stream_scalars` with the current dialect since it does not support server side cursors.rTrrN)rDsupports_server_side_cursorsrrr#rexecuter EMPTY_DICT merge_withcontext_is_server_sider GeneratorExitasyncio create_taskrshield)rrrrrartaskrGrGrJrs.*   CursorResult[_T]crrXrGrrGrGrJrZzAsyncConnection.executecrrXrGrrGrGrJrcrcr)aExecutes a SQL statement construct and return a buffered :class:`_engine.Result`. :param object: The statement to be executed. This is always an object that is in both the :class:`_expression.ClauseElement` and :class:`_expression.Executable` hierarchies, including: * :class:`_expression.Select` * :class:`_expression.Insert`, :class:`_expression.Update`, :class:`_expression.Delete` * :class:`_expression.TextClause` and :class:`_expression.TextualSelect` * :class:`_schema.DDL` and objects which inherit from :class:`_schema.ExecutableDDLElement` :param parameters: parameters which will be bound into the statement. This may be either a dictionary of parameter names to values, or a mutable sequence (e.g. a list) of dictionaries. When a list of dictionaries is passed, the underlying statement execution will make use of the DBAPI ``cursor.executemany()`` method. When a single dictionary is passed, the DBAPI ``cursor.execute()`` method will be used. :param execution_options: optional dictionary of execution options, which will be associated with the statement execution. This dictionary can provide a subset of the options that are accepted by :meth:`_engine.Connection.execution_options`. :return: a :class:`_engine.Result` object. TrN)r#rrrrrGrGrJrls& TypedReturnsRows[Tuple[_T]]"Optional[_CoreSingleExecuteParams] Optional[_T]crrXrGrrGrGrJscalarrzAsyncConnection.scalarcrrXrGrrGrGrJrrc |j|||dIdH}|S)auExecutes a SQL statement construct and returns a scalar object. This method is shorthand for invoking the :meth:`_engine.Result.scalar` method after invoking the :meth:`_engine.Connection.execute` method. Parameters are equivalent. :return: a scalar Python value representing the first column of the first row returned. rN)rrrrGrGrJrs  ScalarResult[_T]crrXrGrrGrGrJscalarsrzAsyncConnection.scalarsScalarResult[Any]crrXrGrrGrGrJrrcr)aiExecutes a SQL statement construct and returns a scalar objects. This method is shorthand for invoking the :meth:`_engine.Result.scalars` method after invoking the :meth:`_engine.Connection.execute` method. Parameters are equivalent. :return: a :class:`_engine.ScalarResult` object. .. versionadded:: 1.4.24 rN)rrrrGrGrJrs  0GeneratorStartableContext[AsyncScalarResult[_T]]cCrrXrGrrGrGrJstream_scalarsrzAsyncConnection.stream_scalars1GeneratorStartableContext[AsyncScalarResult[Any]]cCrrXrGrrGrGrJrr%AsyncIterator[AsyncScalarResult[Any]]c CsV|j|||d4IdH}|VWdIdHdS1IdHs$wYdS)afExecute a statement and return an awaitable yielding a :class:`_asyncio.AsyncScalarResult` object. E.g.:: result = await conn.stream_scalars(stmt) async for scalar in result: print(f"{scalar}") This method is shorthand for invoking the :meth:`_engine.AsyncResult.scalars` method after invoking the :meth:`_engine.Connection.stream` method. Parameters are equivalent. The :meth:`.AsyncConnection.stream_scalars` method supports optional context manager use against the :class:`.AsyncScalarResult` object, as in:: async with conn.stream_scalars(stmt) as result: async for scalar in result: print(f"{scalar}") In the above pattern, the :meth:`.AsyncScalarResult.close` method is invoked unconditionally, even if the iterator is interrupted by an exception throw. Context manager use remains optional, however, and the function may be called in either an ``async with fn():`` or ``await fn()`` style. .. versionadded:: 2.0.0b3 added context manager support :return: an awaitable object that will yield an :class:`_asyncio.AsyncScalarResult` object. .. versionadded:: 1.4.24 .. seealso:: :meth:`.AsyncConnection.stream` rN)rrrrGrGrJrs0 .fn)Callable[Concatenate[Connection, _P], _T]arg_P.argsr< _P.kwargsr8cs&t||jg|Rddi|IdHS)aa Invoke the given synchronous (i.e. not async) callable, passing a synchronous-style :class:`_engine.Connection` as the first argument. This method allows traditional synchronous SQLAlchemy functions to run within the context of an asyncio application. E.g.:: def do_something_with_core(conn: Connection, arg1: int, arg2: str) -> str: """A synchronous function that does not require awaiting :param conn: a Core SQLAlchemy Connection, used synchronously :return: an optional return value is supported """ conn.execute(some_table.insert().values(int_col=arg1, str_col=arg2)) return "success" async def do_something_async(async_engine: AsyncEngine) -> None: """an async function that uses awaiting""" async with async_engine.begin() as async_conn: # run do_something_with_core() with a sync-style # Connection, proxied into an awaitable return_code = await async_conn.run_sync( do_something_with_core, 5, "strval" ) print(return_code) This method maintains the asyncio event loop all the way through to the database connection by running the given callable in a specially instrumented greenlet. The most rudimentary use of :meth:`.AsyncConnection.run_sync` is to invoke methods such as :meth:`_schema.MetaData.create_all`, given an :class:`.AsyncConnection` that needs to be provided to :meth:`_schema.MetaData.create_all` as a :class:`_engine.Connection` object:: # run metadata.create_all(conn) with a sync-style Connection, # proxied into an awaitable with async_engine.begin() as conn: await conn.run_sync(metadata.create_all) .. note:: The provided callable is invoked inline within the asyncio event loop, and will block on traditional IO calls. IO within this callable should only call into SQLAlchemy's asyncio database APIs which will be properly adapted to the greenlet context. .. seealso:: :meth:`.AsyncSession.run_sync` :ref:`session_run_sync` rFN)r#r)rrrr<rGrGrJrun_sync3sD zAsyncConnection.run_sync%Generator[Any, None, AsyncConnection]cCs |SrX)r __await__rrGrGrJr{s zAsyncConnection.__await__type_r] tracebackcs$t|}t|IdHdSrX)rrrr)rrr]rrrGrGrJ __aexit__~szAsyncConnection.__aexit__cCr)zReturn True if this connection is closed. .. container:: class_bases Proxied for the :class:`_engine.Connection` class on behalf of the :class:`_asyncio.AsyncConnection` class. )rrsrrGrGrJrss zAsyncConnection.closedcCr)aTReturn True if this connection was invalidated. .. container:: class_bases Proxied for the :class:`_engine.Connection` class on behalf of the :class:`_asyncio.AsyncConnection` class. This does not indicate whether or not the connection was invalidated at the pool level, however )rrtrrGrGrJrtzAsyncConnection.invalidatedr-cCr)zProxy for the :attr:`_engine.Connection.dialect` attribute on behalf of the :class:`_asyncio.AsyncConnection` class. rrDrrGrGrJrDzAsyncConnection.dialectattrcC ||j_dSrXrrrrGrGrJrD cCr)aThe initial-connection time isolation level associated with the :class:`_engine.Dialect` in use. .. container:: class_bases Proxied for the :class:`_engine.Connection` class on behalf of the :class:`_asyncio.AsyncConnection` class. This value is independent of the :paramref:`.Connection.execution_options.isolation_level` and :paramref:`.Engine.execution_options.isolation_level` execution options, and is determined by the :class:`_engine.Dialect` when the first connection is created, by performing a SQL query against the database for the current isolation level before any additional commands have been emitted. Calling this accessor does not invoke any new SQL queries. .. seealso:: :meth:`_engine.Connection.get_isolation_level` - view current actual isolation level :paramref:`_sa.create_engine.isolation_level` - set per :class:`_engine.Engine` isolation level :paramref:`.Connection.execution_options.isolation_level` - set per :class:`_engine.Connection` isolation level )rrurrGrGrJrus"z'AsyncConnection.default_isolation_levelrX)r|r>r{r})rrr=ryF)rrr=ryrmr=r3)r=r4)r=r)r=r)rrr=r)r=r.r=r)r=r)rrrrVrr.rrrrrrrrrrrrrrrrr=ry)rrr=ryr=r)NN)rrVrrrrr=r)rrrrrrr=r)rr5rrrrr=r)rr5rrrrr=r)rrrrrrr=r)rr5rrrrr=r)rrrrrrr=r)rr5rrrrr=r)rrrrrrr=r)rr5rrrrr=r)rrrrrrr=r)rr5rrrrr=r)rr5rrrrr=r)rrrrr<rr=r8)r=rrrr]rrrr=rrKr=r-rr-r=r).rnrorp__doc__rqr__annotations__rrrrpropertyrrrro_non_memoized_propertyrrrrrrrrrrr rrrrrrrrrrrrrrrrsrtrDsetterrurGrGrGrJrys                        B /   4 H     ryz:class:`_engine.Engine`z:class:`_asyncio.AsyncEngine`)clear_compiled_cacheupdate_execution_optionsget_execution_options)r:poolrDrznamedriverechoc@sxeZdZUdZdZeZded<ded< dMddZe j dNd d Z e dOd d Z ejdPddZdQddZdRddZedddddddSd%d&ZedTd'd&ZdTd(d&ZdUdVd-d.ZdWd/d0ZdXd1d2ZdYd4d5ZedZd7d8Zejd[d:d8Zed\dd=Zed^d@dAZejd_dBdAZed`dCdDZed`dEdFZed`dGdHZ ed`dIdJZ!e!jdadKdJZ!dLS)br>aQAn asyncio proxy for a :class:`_engine.Engine`. :class:`_asyncio.AsyncEngine` is acquired using the :func:`_asyncio.create_async_engine` function:: from sqlalchemy.ext.asyncio import create_async_engine engine = create_async_engine("postgresql+asyncpg://user:pass@host/dbname") .. versionadded:: 1.4 rIzType[AsyncConnection]_connection_clsrcCs.|jjstd|jjd|||_dS)NzFThe asyncio extension requires an async driver to be used. The loaded z is not async.)rDis_asyncrrrr~rI)rrIrGrGrJrszAsyncEngine.__init__r=cCs|jSrX)rIrrGrGrJrszAsyncEngine._proxiedrcCst|SrX)r>rrGrGrJrz(AsyncEngine._regenerate_proxy_for_targetAsyncIterator[AsyncConnection]c Cs|}|4IdH-|4IdH|VWdIdHn 1IdHs(wYWdIdHdS1IdHs>wYdS)aReturn a context manager which when entered will deliver an :class:`_asyncio.AsyncConnection` with an :class:`_asyncio.AsyncTransaction` established. E.g.:: async with async_engine.begin() as conn: await conn.execute( text("insert into table (x, y, z) values (1, 2, 3)") ) await conn.execute(text("my_special_procedure(5)")) N)rFr)rrrGrGrJrs*.zAsyncEngine.beginrycCs ||S)aReturn an :class:`_asyncio.AsyncConnection` object. The :class:`_asyncio.AsyncConnection` will procure a database connection from the underlying connection pool when it is entered as an async context manager:: async with async_engine.connect() as conn: result = await conn.execute(select(user_table)) The :class:`_asyncio.AsyncConnection` may also be started outside of a context manager by invoking its :meth:`_asyncio.AsyncConnection.start` method. )rrrGrGrJrF, zAsyncEngine.connectr3cst|jjIdHS)zReturn a "raw" DBAPI connection from the connection pool. .. seealso:: :ref:`dbapi_connections` N)r#rIraw_connectionrrGrGrJr>szAsyncEngine.raw_connection.)rrrrrrrrrVrr.rrrrrrcKrrXrG)rrrrrrrrGrGrJrHs zAsyncEngine.execution_optionscKrrXrGrrGrGrJrTcKst|jjdi|S)aReturn a new :class:`_asyncio.AsyncEngine` that will provide :class:`_asyncio.AsyncConnection` objects with the given execution options. Proxied from :meth:`_engine.Engine.execution_options`. See that method for details. NrG)r>rIrrrGrGrJrWs Trrrcst|jj|dIdHdS)aEDispose of the connection pool used by this :class:`_asyncio.AsyncEngine`. :param close: if left at its default of ``True``, has the effect of fully closing all **currently checked in** database connections. Connections that are still checked out will **not** be closed, however they will no longer be associated with this :class:`_engine.Engine`, so when they are closed individually, eventually the :class:`_pool.Pool` which they are associated with will be garbage collected and they will be closed out fully, if not already closed on checkin. If set to ``False``, the previous connection pool is de-referenced, and otherwise not touched in any way. .. seealso:: :meth:`_engine.Engine.dispose` rN)r#rIdispose)rrrGrGrJrcszAsyncEngine.disposecCr)a-Clear the compiled cache associated with the dialect. .. container:: class_bases Proxied for the :class:`_engine.Engine` class on behalf of the :class:`_asyncio.AsyncEngine` class. This applies **only** to the built-in cache that is established via the :paramref:`_engine.create_engine.query_cache_size` parameter. It will not impact any dictionary caches that were passed via the :paramref:`.Connection.execution_options.compiled_cache` parameter. .. versionadded:: 1.4 )rrrrGrGrJrs z AsyncEngine.clear_compiled_cachecKs|jjdi|S)aUpdate the default execution_options dictionary of this :class:`_engine.Engine`. .. container:: class_bases Proxied for the :class:`_engine.Engine` class on behalf of the :class:`_asyncio.AsyncEngine` class. The given keys/values in \**opt are added to the default execution options that will be used for all connections. The initial contents of this dictionary can be sent via the ``execution_options`` parameter to :func:`_sa.create_engine`. .. seealso:: :meth:`_engine.Connection.execution_options` :meth:`_engine.Engine.execution_options` NrG)rrrrGrGrJrsz$AsyncEngine.update_execution_optionsr*cCr)aUGet the non-SQL options which will take effect during execution. .. container:: class_bases Proxied for the :class:`_engine.Engine` class on behalf of the :class:`_asyncio.AsyncEngine` class. .. versionadded: 1.3 .. seealso:: :meth:`_engine.Engine.execution_options` )rrrrGrGrJrrz!AsyncEngine.get_execution_optionsr1cCr)zzProxy for the :attr:`_engine.Engine.url` attribute on behalf of the :class:`_asyncio.AsyncEngine` class. rr:rrGrGrJr:rzAsyncEngine.urlrcCrrXr rrGrGrJr:rr2cCr)z{Proxy for the :attr:`_engine.Engine.pool` attribute on behalf of the :class:`_asyncio.AsyncEngine` class. rrrrGrGrJrrzAsyncEngine.poolcCrrXr!rrGrGrJrrr-cCr)z~Proxy for the :attr:`_engine.Engine.dialect` attribute on behalf of the :class:`_asyncio.AsyncEngine` class. rrrGrGrJrDrzAsyncEngine.dialectcCrrXrrrGrGrJrDrcCr)aIReturns this :class:`.Engine`. .. container:: class_bases Proxied for the :class:`_engine.Engine` class on behalf of the :class:`_asyncio.AsyncEngine` class. Used for legacy schemes that accept :class:`.Connection` / :class:`.Engine` objects within the same variable. )rrzrrGrGrJrzrzAsyncEngine.enginecCr)aString name of the :class:`~sqlalchemy.engine.interfaces.Dialect` in use by this :class:`Engine`. .. container:: class_bases Proxied for the :class:`_engine.Engine` class on behalf of the :class:`_asyncio.AsyncEngine` class. )rrrrGrGrJr zAsyncEngine.namecCr)aDriver name of the :class:`~sqlalchemy.engine.interfaces.Dialect` in use by this :class:`Engine`. .. container:: class_bases Proxied for the :class:`_engine.Engine` class on behalf of the :class:`_asyncio.AsyncEngine` class. )rrrrGrGrJrr"zAsyncEngine.drivercCr)a3When ``True``, enable log output for this element. .. container:: class_bases Proxied for the :class:`_engine.Engine` class on behalf of the :class:`_asyncio.AsyncEngine` class. This has the effect of setting the Python logging level for the namespace of this element's class and object reference. A value of boolean ``True`` indicates that the loglevel ``logging.INFO`` will be set for the logger, whereas the string value ``debug`` will set the loglevel to ``logging.DEBUG``. rrrrGrGrJrszAsyncEngine.echocCrrXr#rrGrGrJr*rN)rIr)r=r)rrr=r>)r=r)r=ryr)rrrrVrr.rrrrrrr=r>)rrr=r>)T)rrr=rr)rrr=r)r=r*)r=r1)rr1r=r)r=r2)rr2r=rr r rK)rrr=r)"rnrorpr rqryrr rrrrrrr contextlibasynccontextmanagerrrFrr rrrrrrr:rrrDrzrrrrGrGrGrJr>sf                         c@seZdZUdZdZded<ded<ded<d(d)d d Zed*ddZe j d+ddZ e d,ddZ e d,ddZd-ddZd-ddZd-ddZd(d.dd Zd/d%d&Zd'S)0rz4An asyncio proxy for a :class:`_engine.Transaction`.rsync_transactionrzOptional[Transaction]r'ryrrrFcCs||_d|_||_dSrXr&)rrrrGrGrJr<s zAsyncTransaction.__init__rr!r=cCsP|j}|}t|t}t|}|dusJ||}||_|||_||_|SrX) r isinstancer ryr__new__r~r'r)rkrr{r'rasync_connectionobjrGrGrJrAs    z-AsyncTransaction._regenerate_proxy_for_targetcCrrX)r'rrrGrGrJrTrzAsyncTransaction._proxiedcCrrX)ris_validrrGrGrJr,ZrzAsyncTransaction.is_validcCrrX)r is_activerrGrGrJr-^rzAsyncTransaction.is_activercr)a@Close this :class:`.AsyncTransaction`. If this transaction is the base transaction in a begin/commit nesting, the transaction will rollback(). Otherwise, the method returns. This is used to cancel a Transaction without affecting the scope of an enclosing transaction. NrrrGrGrJrbs zAsyncTransaction.closecr)z*Roll back this :class:`.AsyncTransaction`.NrrrGrGrJroszAsyncTransaction.rollbackcr)z'Commit this :class:`.AsyncTransaction`.NrrrGrGrJrsszAsyncTransaction.commitrcs@|t|jr |jjjn|jjjIdH|_|r|j|S)z{Start this :class:`_asyncio.AsyncTransaction` object's context outside of using a Python ``with:`` block. N) r~r#rrrrrr' __enter__rrGrGrJrxs  zAsyncTransaction.startrrr]rcst|jj|||IdHdSrX)r#r__exit__)rrr]rrGrGrJrszAsyncTransaction.__aexit__Nr)rryrr)rr!r=r)r=r!rr)rrr=rr )rnrorpr rqr rrrrrrrrr,r-rrrrrrGrGrGrJr1s(         rr|rcCrrXrGr|rGrGrJ_get_sync_engine_or_connectionrr1rcCrrXrGr0rGrGrJr1s#Union[AsyncEngine, AsyncConnection]Union[Engine, Connection]c CsBt|tr|jSz|jWSty }ztd||d}~ww)NzAsyncEngine expected, got %r)r(ryrrIAttributeErrorrr")r|erGrGrJr1s subjectrcCtjddd)NzInspection on an AsyncConnection is currently not supported. Please use ``run_sync`` to pass a callable where it's possible to call ``inspect`` on the passed connection.xd3scoderNoInspectionAvailabler6rGrGrJ_no_insp_for_async_conn_yetsr>cCr7)NzInspection on an AsyncEngine is currently not supported. Please obtain a connection then use ``conn.run_sync`` to pass a callable where it's possible to call ``inspect`` on the passed connection.r8r9r;r=rGrGrJ_no_insp_for_async_engine_xyetsr?)r:r;r<rr=r>)rR)rSrTrUrVrWrr=r>)r:r;rWrr=r2)r|r>r=r)r|ryr=r)r|r2r=r3)r6ryr=r)r6r>r=r)W __future__rrr$typingrrrrrrr r r r r rrrrMbaserrrrrrrrrrrzrrrPrrer engine.baser r!r"util.concurrencyr# util.typingr$r% engine.cursorr&engine.interfacesr'r(r)r*r+r,r-r.r/ engine.resultr0 engine.urlr1rr2r3 sql._typingr4sql.baser5sql.selectabler6r7r8rQrdrfrgcreate_proxy_methodsryr>rr1 _inspectsr>r?rGrGrGrJs                                                      7   "  N \