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path: root/lib/sqlalchemy/ext/asyncio/__init__.py
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* add AsyncAttrsMike Bayer2023-05-081-0/+1
| | | | | | | | | | Added a new helper mixin :class:`_asyncio.AsyncAttrs` that seeks to improve the use of lazy-loader and other expired or deferred ORM attributes with asyncio, providing a simple attribute accessor that provides an ``await`` interface to any ORM attribute, whether or not it needs to emit SQL. Change-Id: I1427b288dc28319c854372643066c491b9ee8dc0 References: #9731
* Add pool creation functionsFederico Caselli2023-04-121-0/+1
| | | | | | | | | | Added :func:`_sa.create_pool_from_url` and :func:`_asyncio.create_async_pool_from_url` to create a :class:`_pool.Pool` instance from an input url passed as string or :class:`_sa.URL`. Fixes: #9613 Change-Id: Icd8aa3f2849e6fd1bc5341114f3ef8d216a2c543
* happy new year 2023Mike Bayer2023-01-031-1/+1
| | | | Change-Id: I625af65b3fb1815b1af17dc2ef47dd697fdc3fb1
* Better syncronize async result docs with plain ones.Federico Caselli2022-12-091-0/+1
| | | | | | | | | | Removed non-functional method ``merge`` from :class:`_asyncio.AsyncResult`. This method was non-functional and non-testes since the first introduction of asyncio in SQLAlchemy. Fixes: #7158 Fixes: #8952 Change-Id: Ibc3d17be8a8b7cab9bf2074f0408f74b4c4b161d
* pep-484: asyncioMike Bayer2022-04-111-15/+14
| | | | | | | | | | | | | | | | | | | | | in this patch the asyncio/events.py module, which existed only to raise errors when trying to attach event listeners, is removed, as we were already coding an asyncio-specific workaround in upstream Pool / Session to raise this error, just moved the error out to the target and did the same thing for Engine. We also add an async_sessionmaker class. The initial rationale here is because sessionmaker() is hardcoded to Session subclasses, and there's not a way to get the use case of sessionmaker(class_=AsyncSession) to type correctly without changing the sessionmaker() symbol itself to be a function and not a class, which gets too complicated for what this is. Additionally, _SessionClassMethods has only three methods on it, one of which is not usable with asyncio (close_all()), the others not generally used from the session class. Change-Id: I064a5fa5d91cc8d5bbe9597437536e37b4e801fe
* happy new year 2022Mike Bayer2022-01-061-1/+1
| | | | Change-Id: I49abf2607e0eb0623650efdf0091b1fb3db737ea
* Add async_engine_from_config()Nils Philippsen2021-12-101-0/+1
| | | | | | | | | | | | | Added :func:`_asyncio.async_engine_config` function to create an async engine from a configuration dict. This otherwise behaves the same as :func:`_sa.engine_from_config`. Fixes: #7301 Closes: #7302 Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/7302 Pull-request-sha: c7c758833b6c37b7509b8c5bed4f26ac0ccc0395 Change-Id: I64feadf95b5015c24fe0fa0dbae6755b72d1713e
* Replace all http:// links to https://Federico Caselli2021-07-041-1/+1
| | | | | | Also replace http://pypi.python.org/pypi with https://pypi.org/project Change-Id: I84b5005c39969a82140706472989f2a30b0c7685
* Implement async_scoped_sessionjason3gb2021-06-161-0/+1
| | | | | | | | | | | | | | | Implemented :class:`_asyncio.async_scoped_session` to address some asyncio-related incompatibilities between :class:`_orm.scoped_session` and :class:`_asyncio.AsyncSession`, in which some methods (notably the :meth:`_asyncio.async_scoped_session.remove` method) should be used with the ``await`` keyword. Fixes: #6583 Closes: #6603 Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/6603 Pull-request-sha: 0e8ef87dc824dcd83dca01641441afc453c8e07a Change-Id: I9bfe56f8670302ff0015d9dc56c1e3ac5b92b118
* Implement proxy back reference system for asyncioMike Bayer2021-06-021-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Implemented a new registry architecture that allows the ``Async`` version of an object, like ``AsyncSession``, ``AsyncConnection``, etc., to be locatable given the proxied "sync" object, i.e. ``Session``, ``Connection``. Previously, to the degree such lookup functions were used, an ``Async`` object would be re-created each time, which was less than ideal as the identity and state of the "async" object would not be preserved across calls. From there, new helper functions :func:`_asyncio.async_object_session`, :func:`_asyncio.async_session` as well as a new :class:`_orm.InstanceState` attribute :attr:`_orm.InstanceState.asyncio_session` have been added, which are used to retrieve the original :class:`_asyncio.AsyncSession` associated with an ORM mapped object, a :class:`_orm.Session` associated with an :class:`_asyncio.AsyncSession`, and an :class:`_asyncio.AsyncSession` associated with an :class:`_orm.InstanceState`, respectively. This patch also implements new methods :meth:`_asyncio.AsyncSession.in_nested_transaction`, :meth:`_asyncio.AsyncSession.get_transaction`, :meth:`_asyncio.AsyncSession.get_nested_transaction`. Fixes: #6319 Change-Id: Ia452a7e7ce9bad3ff8846c7dea8d45c839ac9fac
* Ignore flake8 F401 on specific filesFederico Caselli2021-03-031-11/+11
| | | | | | | | Uses the flake8 option per-file-ignores that was introduced in a recent version of flake8 (3.7.+) to avoid having lots of "noqa" in import only files Change-Id: Ib4871d63bad7e578165615df139cbf6093479201
* add missing copyright to asyncio filesMike Bayer2021-03-021-0/+7
| | | | Change-Id: I6028b70bba76d6d9e1042762423d61f83644c085
* generalize scoped_session proxying and apply to asyncio elementsMike Bayer2020-10-101-0/+2
| | | | | | | | | | | | | | | | | | | | Reworked the proxy creation used by scoped_session() to be based on fully copied code with augmented docstrings and moved it into langhelpers. asyncio session, engine, connection can now take advantage of it so that all non-async methods are availble. Overall implementation of most important accessors / methods on AsyncConnection, etc. , including awaitable versions of invalidate, execution_options, etc. In order to support an event dispatcher on the async classes while still allowing them to hold __slots__, make some adjustments to the event system to allow that to be present, at least rudimentally. Fixes: #5628 Change-Id: I5eb6929fc1e4fdac99e4b767dcfd49672d56e2b2
* Implement rudimentary asyncio support w/ asyncpgMike Bayer2020-08-131-0/+9
Using the approach introduced at https://gist.github.com/zzzeek/6287e28054d3baddc07fa21a7227904e We can now create asyncio endpoints that are then handled in "implicit IO" form within the majority of the Core internals. Then coroutines are re-exposed at the point at which we call into asyncpg methods. Patch includes: * asyncpg dialect * asyncio package * engine, result, ORM session classes * new test fixtures, tests * some work with pep-484 and a short plugin for the pyannotate package, which seems to have so-so results Change-Id: Idbcc0eff72c4cad572914acdd6f40ddb1aef1a7d Fixes: #3414
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