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base repository: python/importlib_metadata
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base: v7.0.2
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head repository: python/importlib_metadata
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compare: v7.1.0
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  • 16 commits
  • 13 files changed
  • 3 contributors

Commits on Mar 20, 2024

  1. gh-109653: Improve import time of importlib.metadata / email.utils (p… 

    …ython/cpython#114664)

My criterion for delayed imports is that they're only worth it if the
majority of users of the module would benefit from it, otherwise you're
just moving latency around unpredictably.

mktime_tz is not used anywhere in the standard library and grep.app
indicates it's not got much use in the ecosystem either.

Distribution.files is not nearly as widely used as other
importlib.metadata APIs, so we defer the csv import.

Before:
```
λ hyperfine -w 8 './python -c "import importlib.metadata"'
Benchmark 1: ./python -c "import importlib.metadata"
  Time (mean ± σ):      65.1 ms ±   0.5 ms    [User: 55.3 ms, System: 9.8 ms]
  Range (min … max):    64.4 ms …  66.4 ms    44 runs
```

After:
```
λ hyperfine -w 8 './python -c "import importlib.metadata"'
Benchmark 1: ./python -c "import importlib.metadata"
  Time (mean ± σ):      62.0 ms ±   0.3 ms    [User: 52.5 ms, System: 9.6 ms]
  Range (min … max):    61.3 ms …  62.8 ms    46 runs
```

for about a 3ms saving with warm disk cache, maybe 7-11ms with cold disk
cache.
    @hauntsaninja @jaraco
    hauntsaninja authored and jaraco committed Mar 20, 2024
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  2. gh-116811: Ensure MetadataPathFinder.invalidate_caches is reachable w… 

    …hen delegated through PathFinder. (python/cpython#116812)

* Make MetadataPathFinder a proper classmethod.
    @jaraco
    jaraco committed Mar 20, 2024
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  3. gh-114107: Fix symlink test if symlinks aren't supported (python/cpyt… 

    …hon#114108)
    @encukou @jaraco
    encukou authored and jaraco committed Mar 20, 2024
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  4. Add support for python/cpython references

    @jaraco
    jaraco committed Mar 20, 2024
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  5. Fix test failures on older Pythons with os_helper shim. Copied 'from_… 

    …test_support' from importlib_resources.
    @jaraco
    jaraco committed Mar 20, 2024
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  6. Moved compatibility module to compat package.

    @jaraco
    jaraco committed Mar 20, 2024
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  7. Moved compatibility module to compat package.

    @jaraco
    jaraco committed Mar 20, 2024
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  8. Remove legacy logic for Python 3.7.

    @jaraco
    jaraco committed Mar 20, 2024
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  9. Moved compatibility tests to the compat package, as they're not inclu… 

    …ded in CPython.
    @jaraco
    jaraco committed Mar 20, 2024
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  10. Consolidated test support logic in jaraco.test.cpython.

    @jaraco
    jaraco committed Mar 20, 2024
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  11. Copy backport of isolated_modules from importlib_resources.

    @jaraco
    jaraco committed Mar 20, 2024
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  12. Ensure tests do not leak references in sys.modules.

    @jaraco
    jaraco committed Mar 20, 2024
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  13. Make MetadataPathFinder.find_distributions a classmethod for consiste… 

    …ncy with CPython. Closes #484.
    @jaraco
    jaraco committed Mar 20, 2024
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  14. Need to include names from test.support for py312 compat.

    @jaraco
    jaraco committed Mar 20, 2024
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  15. Merge commit '1711b2c198'

    @jaraco
    jaraco committed Mar 20, 2024
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  16. Finalize

    @jaraco
    jaraco committed Mar 20, 2024
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