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GH-128520: pathlib ABCs: allow tests to be run externally (#131315)

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Adjust the tests for the `pathlib.types` module so that they can be run
against the `pathlib-abc` PyPI package, which is a backport of the module
for older Python versions.

Specifically, we add a `.support.is_pypi` switch that is false in the
stdlib and true in the pathlib-abc package. This controls which package
we import, and whether or not we run tests against `PurePath` and `Path`.

For compatibility with older Python versions, we stop using
`zipfile.ZipFile.mkdir()` and `zipfile.ZipInfo._for_archive()`.
This commit is contained in:
Barney Gale 2025-03-21 22:18:20 +00:00 • committed by GitHub
parent 56d0f9af14
commit cf9d1a4b6b
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10 changed files with 127 additions and 72 deletions
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21
Lib/test/test_pathlib/test_write.py
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@ -6,12 +6,16 @@ import io
import os
import unittest
from pathlib import Path
from pathlib.types import _WritablePath
from pathlib._os import magic_open
from .support import is_pypi
from .support.local_path import WritableLocalPath, LocalPathGround
from .support.zip_path import WritableZipPath, ZipPathGround
from test.test_pathlib.support.local_path import WritableLocalPath, LocalPathGround
from test.test_pathlib.support.zip_path import WritableZipPath, ZipPathGround
if is_pypi:
from pathlib_abc import _WritablePath
from pathlib_abc._os import magic_open
else:
from pathlib.types import _WritablePath
from pathlib._os import magic_open
class WriteTestBase:
@ -101,8 +105,11 @@ class LocalPathWriteTest(WriteTestBase, unittest.TestCase):
ground = LocalPathGround(WritableLocalPath)
class PathWriteTest(WriteTestBase, unittest.TestCase):
ground = LocalPathGround(Path)
if not is_pypi:
from pathlib import Path
class PathWriteTest(WriteTestBase, unittest.TestCase):
ground = LocalPathGround(Path)
if __name__ == "__main__":