Officially deprecate pkg_resources #3843
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jaraco
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I expect this change to have minimal impact on users of Setuptools as a build tool because |
This was referenced Mar 28, 2023
mdickinson
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Apr 3, 2023
This PR fixes mutable-global-state-related issues with the egg-based tests (again). The root cause of the problems is that we're interfacing with an ill-defined (and now [deprecated](pypa/setuptools#3843) and unmaintained) API in `setuptools` code, which makes those interactions fragile, and that tests make significant changes to global state. The immediate cause of the issues is that we were trying to undo changes to `pkg_resources` global state by replacing the global `pkg_resources.working_set` with a fresh `WorkingSet` object during test teardown, but that `WorkingSet` object was missing some of the initialization (registered callbacks) that the original `WorkingSet` had. The main change in this PR is to try to undo global state changes by _mutating_ the existing `pkg_resources.working_set` back to its original state, instead of replacing `pkg_resources.working_set`. Alongside that, we've reorganised the relevant tests to share common machinery (now in `envisage.tests.support`) and to make use of context managers for cleanup. Fixes #440 Fixes #563 The test suite also now runs cleanly under the `haas` test runner.
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fanquake
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Aug 29, 2023
…ith importlib.metadata 6c008a2 script: replace deprecated pkg_resources with importlib.metadata (Jon Atack) Pull request description: Running our python linter with a recent python and the latest release of setuptools [v68.1.2](https://setuptools.pypa.io/en/stable/history.html): ``` $ python3 --version Python 3.11.5 $ ./test/lint/lint-python.py:12: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html import pkg_resources ``` Using `pkg_resources` was [deprecated](pypa/setuptools#3843) earlier in [v67.5.0](https://setuptools.pypa.io/en/stable/history.html#id55): "Although pkg_resources has been discouraged for use, some projects still consider pkg_resources viable for usage. This change makes it clear that pkg_resources should not be used, emitting a DeprecationWarning when imported." The `importlib.metadata` library requires Python 3.8, which is currently our minimum-supported Python version. For more details about `importlib.metadata` and the two methods imported and used here, see: - https://docs.python.org/3/library/importlib.metadata.html - https://importlib-metadata.readthedocs.io/en/latest/api.html#importlib_metadata.metadata - https://importlib-metadata.readthedocs.io/en/latest/api.html#importlib_metadata.PackageNotFoundError ACKs for top commit: MarcoFalke: lgtm ACK 6c008a2 (review only, did not test) Tree-SHA512: f5258d37043fcc9744f85641a60a3395ad43822c72d030dea8c39fa7f48ec3d7790cdeeb832f96e8f38046adb7c62fbc577c975ef0c77c8047c0c8f2353ce540
Frank-GER
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…rtlib.metadata 6c008a2 script: replace deprecated pkg_resources with importlib.metadata (Jon Atack) Pull request description: Running our python linter with a recent python and the latest release of setuptools [v68.1.2](https://setuptools.pypa.io/en/stable/history.html): ``` $ python3 --version Python 3.11.5 $ ./test/lint/lint-python.py:12: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html import pkg_resources ``` Using `pkg_resources` was [deprecated](pypa/setuptools#3843) earlier in [v67.5.0](https://setuptools.pypa.io/en/stable/history.html#id55): "Although pkg_resources has been discouraged for use, some projects still consider pkg_resources viable for usage. This change makes it clear that pkg_resources should not be used, emitting a DeprecationWarning when imported." The `importlib.metadata` library requires Python 3.8, which is currently our minimum-supported Python version. For more details about `importlib.metadata` and the two methods imported and used here, see: - https://docs.python.org/3/library/importlib.metadata.html - https://importlib-metadata.readthedocs.io/en/latest/api.html#importlib_metadata.metadata - https://importlib-metadata.readthedocs.io/en/latest/api.html#importlib_metadata.PackageNotFoundError ACKs for top commit: MarcoFalke: lgtm ACK 6c008a2 (review only, did not test) Tree-SHA512: f5258d37043fcc9744f85641a60a3395ad43822c72d030dea8c39fa7f48ec3d7790cdeeb832f96e8f38046adb7c62fbc577c975ef0c77c8047c0c8f2353ce540
openstack-mirroring
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Jul 10, 2024
* Update swift from branch 'master'
to 9c38d756e0233eaa5f9e26066756eea9ce6a11ad
- Merge "Use entry_points for server executables"
- Use entry_points for server executables
The old [files]scripts method of specifying executable Python scripts
triggers some legacy easy-install-like mode for editable installs,
which relies on pkg_resources. Recent versions of setuptools (67.5.0+)
have started emitting warnings when importing pkg_resources, which in
turn cause quite noticeable slowdowns in process startup. This is
particularly prominant on py312, which stopped pre-installing (an often
older version of) setuptools in new venvs.
See also:
- python/cpython#95299
- pypa/setuptools#3843
- pypa/setuptools#3966
Now, use [entry_points]console_scripts to specify these executables,
which does not use pkg_resources in the generated script files.
Change-Id: Ifcc8138e7b55d5b82bea0d411ec6bfcca2c77c83
openstack-mirroring
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Jul 10, 2024
The old [files]scripts method of specifying executable Python scripts triggers some legacy easy-install-like mode for editable installs, which relies on pkg_resources. Recent versions of setuptools (67.5.0+) have started emitting warnings when importing pkg_resources, which in turn cause quite noticeable slowdowns in process startup. This is particularly prominant on py312, which stopped pre-installing (an often older version of) setuptools in new venvs. See also: - python/cpython#95299 - pypa/setuptools#3843 - pypa/setuptools#3966 Now, use [entry_points]console_scripts to specify these executables, which does not use pkg_resources in the generated script files. Change-Id: Ifcc8138e7b55d5b82bea0d411ec6bfcca2c77c83
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