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Fasteners ========= .. image:: https://travis-ci.org/harlowja/fasteners.png?branch=master :target: https://travis-ci.org/harlowja/fasteners .. image:: https://readthedocs.org/projects/fasteners/badge/?version=latest :target: https://readthedocs.org/projects/fasteners/?badge=latest :alt: Documentation Status .. image:: https://img.shields.io/pypi/dm/fasteners.svg :target: https://pypi.python.org/pypi/fasteners/ :alt: Downloads .. image:: https://img.shields.io/pypi/v/fasteners.svg :target: https://pypi.python.org/pypi/fasteners/ :alt: Latest Version Overview -------- A python `package`_ that provides useful locks. It includes the following. Locking decorator ***************** * Helpful ``locked`` decorator (that acquires instance objects lock(s) and acquires on method entry and releases on method exit). Reader-writer locks ******************* * Multiple readers (at the same time). * Single writers (blocking any readers). * Helpful ``read_locked`` and ``write_locked`` decorators. Inter-process locks ******************* * Single writer using file based locking (these automatically release on process exit, even if ``__release__`` or ``__exit__`` is never called). * Helpful ``interprocess_locked`` decorator. Generic helpers *************** * A ``try_lock`` helper context manager that will attempt to acquire a given lock and provide back whether the attempt passed or failed (if it passes, then further code in the context manager will be ran **with** the lock acquired). .. _package: https://pypi.python.org/pypi/fasteners