Metadata-Version: 2.2
Name: async_exit_stack
Version: 1.0.1
Summary: AsyncExitStack backport for Python 3.5+
Home-page: https://github.com/sorcio/async_exit_stack
Author: Davide Rizzo
Author-email: sorcio@gmail.com
License: Python Software Foundation License
Keywords: async_exit_stack
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: Python Software Foundation License
Classifier: Natural Language :: English
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.5
Classifier: Programming Language :: Python :: 3.6
Requires-Python: >=3.5
License-File: LICENSE
Dynamic: author
Dynamic: author-email
Dynamic: classifier
Dynamic: description
Dynamic: home-page
Dynamic: keywords
Dynamic: license
Dynamic: requires-python
Dynamic: summary

.. 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.
