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propcache
=========
The module provides a fast implementation of cached properties for Python
3.9+.
:align: right
:alt: Matrix Room — #aio-libs:matrix.org
:alt: Matrix Space — #aio-libs-space:matrix.org
Introduction
------------
The API is designed to be nearly identical to the built-in
``functools.cached_property`` class,
except for the additional under_cached_property class which uses
``self._cache
instead of self.__dict__ to store the cached values and prevents __set__``
from being called.
For full documentation please read https://propcache.readthedocs.io.
Installation
------------
::
$ pip install propcache
The library is Python 3 only!
PyPI contains binary wheels for Linux, Windows and MacOS. If you want to
install
propcache on another operating system where wheels are not provided,
the the tarball will be used to compile the library from
the source code. It requires a C compiler and and Python headers installed.
To skip the compilation you must explicitly opt-in by using a PEP 517
configuration setting ``pure-python``, or setting the
PROPCACHE_NO_EXTENSIONS
environment variable to a non-empty value, e.g.:
.. code-block:: console
$ pip install propcache --config-settings=pure-python=false
Please note that the pure-Python (uncompiled) version is much slower.
However,
PyPy always uses a pure-Python implementation, and, as such, it is
unaffected
by this variable.
API documentation
------------------
The documentation is located at https://propcache.readthedocs.io.
Source code
-----------
The project is hosted on GitHub_
Please file an issue on the [bug tracker
] if you have found a bug
or have some suggestion in order to improve the library.
Discussion list
---------------
*aio-libs* google group: https://groups.google.com/forum/#!forum/aio-libs
Feel free to post your questions and ideas here.
Authors and License
-------------------
The propcache package is derived from yarl which is written by Andrew
Svetlov.
It's *Apache 2* licensed and freely available.
.. _GitHub: https://github.com/aio-libs/propcache
=========
Changelog
=========
..
You should *NOT* be adding new change log entries to this file, this
file is managed by towncrier. You *may* edit previous change logs to
fix problems like typo corrections or such.
To add a new change log entry, please see
https://pip.pypa.io/en/latest/development/#adding-a-news-entry
we named the news folder "changes".
WARNING: Don't drop the next directive!
.. towncrier release notes start
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