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51 lines
2.5 KiB
Plaintext
51 lines
2.5 KiB
Plaintext
Metadata-Version: 2.1
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Name: entrypoints
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Version: 0.4
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Summary: Discover and load entry points from installed packages.
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Home-page: https://github.com/takluyver/entrypoints
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Author: Thomas Kluyver
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Author-email: thomas@kluyver.me.uk
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Requires-Python: >=3.6
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Description-Content-Type: text/x-rst
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Classifier: License :: OSI Approved :: MIT License
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Classifier: Programming Language :: Python :: 3
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Project-URL: Documentation, https://entrypoints.readthedocs.io/en/latest/
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**This package is in maintenance-only mode.** New code should use the
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`importlib.metadata module <https://docs.python.org/3/library/importlib.metadata.html>`_
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in the Python standard library to find and load entry points.
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Entry points are a way for Python packages to advertise objects with some
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common interface. The most common examples are ``console_scripts`` entry points,
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which define shell commands by identifying a Python function to run.
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*Groups* of entry points, such as ``console_scripts``, point to objects with
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similar interfaces. An application might use a group to find its plugins, or
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multiple groups if it has different kinds of plugins.
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The **entrypoints** module contains functions to find and load entry points.
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You can install it from PyPI with ``pip install entrypoints``.
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To advertise entry points when distributing a package, see
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`entry_points in the Python Packaging User Guide
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<https://packaging.python.org/guides/distributing-packages-using-setuptools/#entry-points>`_.
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The ``pkg_resources`` module distributed with ``setuptools`` provides a way to
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discover entrypoints as well, but it contains other functionality unrelated to
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entrypoint discovery, and it does a lot of work at import time. Merely
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*importing* ``pkg_resources`` causes it to scan the files of all installed
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packages. Thus, in environments where a large number of packages are installed,
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importing ``pkg_resources`` can be very slow (several seconds).
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By contrast, ``entrypoints`` is focused solely on entrypoint discovery and it
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is faster. Importing ``entrypoints`` does not scan anything, and getting a
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given entrypoint group performs a more focused scan.
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When there are multiple versions of the same distribution in different
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directories on ``sys.path``, ``entrypoints`` follows the rule that the first
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one wins. In most cases, this follows the logic of imports. Similarly,
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Entrypoints relies on ``pip`` to ensure that only one ``.dist-info`` or
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``.egg-info`` directory exists for each installed package. There is no reliable
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way to pick which of several `.dist-info` folders accurately relates to the
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importable modules.
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