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165 lines
3.9 KiB
165 lines
3.9 KiB
Metadata-Version: 2.1
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Name: async-timeout
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Version: 3.0.1
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Summary: Timeout context manager for asyncio programs
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Home-page: https://github.com/aio-libs/async_timeout/
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Author: Andrew Svetlov
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Author-email: andrew.svetlov@gmail.com
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License: Apache 2
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Platform: UNKNOWN
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Classifier: License :: OSI Approved :: Apache Software License
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Classifier: Intended Audience :: Developers
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Classifier: Programming Language :: Python
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Classifier: Programming Language :: Python :: 3
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Classifier: Programming Language :: Python :: 3.5
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Classifier: Programming Language :: Python :: 3.6
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Classifier: Topic :: Internet :: WWW/HTTP
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Classifier: Framework :: AsyncIO
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Requires-Python: >=3.5.3
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async-timeout
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=============
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.. image:: https://travis-ci.org/aio-libs/async-timeout.svg?branch=master
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:target: https://travis-ci.org/aio-libs/async-timeout
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.. image:: https://codecov.io/gh/aio-libs/async-timeout/branch/master/graph/badge.svg
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:target: https://codecov.io/gh/aio-libs/async-timeout
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.. image:: https://img.shields.io/pypi/v/async-timeout.svg
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:target: https://pypi.python.org/pypi/async-timeout
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.. image:: https://badges.gitter.im/Join%20Chat.svg
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:target: https://gitter.im/aio-libs/Lobby
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:alt: Chat on Gitter
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asyncio-compatible timeout context manager.
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Usage example
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-------------
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The context manager is useful in cases when you want to apply timeout
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logic around block of code or in cases when ``asyncio.wait_for()`` is
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not suitable. Also it's much faster than ``asyncio.wait_for()``
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because ``timeout`` doesn't create a new task.
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The ``timeout(timeout, *, loop=None)`` call returns a context manager
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that cancels a block on *timeout* expiring::
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async with timeout(1.5):
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await inner()
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1. If ``inner()`` is executed faster than in ``1.5`` seconds nothing
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happens.
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2. Otherwise ``inner()`` is cancelled internally by sending
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``asyncio.CancelledError`` into but ``asyncio.TimeoutError`` is
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raised outside of context manager scope.
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*timeout* parameter could be ``None`` for skipping timeout functionality.
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Context manager has ``.expired`` property for check if timeout happens
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exactly in context manager::
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async with timeout(1.5) as cm:
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await inner()
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print(cm.expired)
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The property is ``True`` if ``inner()`` execution is cancelled by
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timeout context manager.
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If ``inner()`` call explicitly raises ``TimeoutError`` ``cm.expired``
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is ``False``.
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Installation
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------------
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::
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$ pip install async-timeout
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The library is Python 3 only!
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Authors and License
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-------------------
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The module is written by Andrew Svetlov.
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It's *Apache 2* licensed and freely available.
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CHANGES
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=======
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3.0.1 (2018-10-09)
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------------------
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- More aggressive typing (#48)
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3.0.0 (2018-05-05)
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------------------
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- Drop Python 3.4, the minimal supported version is Python 3.5.3
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- Provide type annotations
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2.0.1 (2018-03-13)
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------------------
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* Fix ``PendingDeprecationWarning`` on Python 3.7 (#33)
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2.0.0 (2017-10-09)
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------------------
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* Changed `timeout <= 0` behaviour
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* Backward incompatibility change, prior this version `0` was
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shortcut for `None`
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* when timeout <= 0 `TimeoutError` raised faster
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1.4.0 (2017-09-09)
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------------------
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* Implement `remaining` property (#20)
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* If timeout is not started yet or started unconstrained:
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`remaining` is `None`
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* If timeout is expired: `remaining` is `0.0`
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* All others: roughly amount of time before `TimeoutError` is triggered
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1.3.0 (2017-08-23)
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------------------
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* Don't suppress nested exception on timeout. Exception context points
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on cancelled line with suspended `await` (#13)
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* Introduce `.timeout` property (#16)
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* Add methods for using as async context manager (#9)
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1.2.1 (2017-05-02)
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------------------
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* Support unpublished event loop's "current_task" api.
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1.2.0 (2017-03-11)
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------------------
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* Extra check on context manager exit
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* 0 is no-op timeout
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1.1.0 (2016-10-20)
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------------------
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* Rename to `async-timeout`
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1.0.0 (2016-09-09)
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------------------
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* The first release.
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