.. role:: python(code)
:language: python
.. image:: https://img.shields.io/pypi/v/async_exit_stack.svg
:target: https://pypi.python.org/pypi/async_exit_stack
.. image:: https://img.shields.io/travis/sorcio/async_exit_stack.svg
:target: https://travis-ci.org/sorcio/async_exit_stack
=======================================
AsyncExitStack backport for Python 3.5+
=======================================
* Free software: PSF license
* Documentation: https://docs.python.org/3.7/library/contextlib.html#contextlib.AsyncExitStack
This package contains code from the CPython project.
Install
-------
::
pip install async_exit_stack
Usage example
-------------
.. code:: python
from async_exit_stack import AsyncExitStack
async def some_async_function():
async with AsyncExitStack() as stack:
connections = [await stack.enter_async_context(get_connection())
for i in range(5)]
# All opened connections will automatically be released at the end of
# the async with statement, even if attempts to open a connection
# later in the list raise an exception.
Reference
---------
Refer to `Python 3.7 contextlib documentation
<https://docs.python.org/3.7/library/contextlib.html#contextlib.AsyncExitStack>`_
for a complete reference and more context.
`class AsyncExitStack`:python:
An asynchronous context manager, similar to ExitStack, that supports combining
both synchronous and asynchronous context managers, as well as having
coroutines for cleanup logic.
The close() method is not implemented, aclose() must be used instead.
`enter_async_context(cm)`:python:
Similar to enter_context() but expects an asynchronous context manager.
`push_async_exit(exit)`:python:
Similar to push() but expects either an asynchronous context manager or a coroutine.
`push_async_callback(callback, *args, **kwds)`:python:
Similar to callback() but expects a coroutine.
`aclose()`:python:
Similar to close() but properly handles awaitables.
=======
History
=======
1.0.0 (2018-05-07)
------------------
* First release based on Python 3.7b4.
Raw data
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