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[3.13] gh-59022: Added tests for pkgutil.extend_path (GH-59022) (GH-121673) #121951

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Merged
merged 2 commits into from
Jul 19, 2024
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[3.13] gh-59022: Added tests for pkgutil.extend_path (GH-59022) (GH-121673) #121951

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464b398
gh-59022: Added tests for `pkgutil.extend_path` (GH-59022) (GH-121673)
beachmachine Jul 16, 2024
72f27a6
Merge branch '3.13' into backport-8f25321-3.13
encukou Jul 19, 2024
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6 changes: 3 additions & 3 deletions Doc/library/pkgutil.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -34,9 +34,9 @@ support.
*name* argument. This feature is similar to :file:`\*.pth` files (see the
:mod:`site` module for more information), except that it doesn't special-case
lines starting with ``import``. A :file:`\*.pkg` file is trusted at face
value: apart from checking for duplicates, all entries found in a
:file:`\*.pkg` file are added to the path, regardless of whether they exist
on the filesystem. (This is a feature.)
value: apart from skipping blank lines and ignoring comments, all entries
found in a :file:`\*.pkg` file are added to the path, regardless of whether
they exist on the filesystem (this is a feature).

If the input path is not a list (as is the case for frozen packages) it is
returned unchanged. The input path is not modified; an extended copy is
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38 changes: 37 additions & 1 deletion Lib/test/test_pkgutil.py
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Expand Up @@ -522,7 +522,43 @@ def test_mixed_namespace(self):
del sys.modules['foo.bar']
del sys.modules['foo.baz']

# XXX: test .pkg files

def test_extend_path_argument_types(self):
pkgname = 'foo'
dirname_0 = self.create_init(pkgname)

# If the input path is not a list it is returned unchanged
self.assertEqual('notalist', pkgutil.extend_path('notalist', 'foo'))
self.assertEqual(('not', 'a', 'list'), pkgutil.extend_path(('not', 'a', 'list'), 'foo'))
self.assertEqual(123, pkgutil.extend_path(123, 'foo'))
self.assertEqual(None, pkgutil.extend_path(None, 'foo'))

# Cleanup
shutil.rmtree(dirname_0)
del sys.path[0]


def test_extend_path_pkg_files(self):
pkgname = 'foo'
dirname_0 = self.create_init(pkgname)

with open(os.path.join(dirname_0, 'bar.pkg'), 'w') as pkg_file:
pkg_file.write('\n'.join([
'baz',
'/foo/bar/baz',
'',
'#comment'
]))

extended_paths = pkgutil.extend_path(sys.path, 'bar')

self.assertEqual(extended_paths[:-2], sys.path)
self.assertEqual(extended_paths[-2], 'baz')
self.assertEqual(extended_paths[-1], '/foo/bar/baz')

# Cleanup
shutil.rmtree(dirname_0)
del sys.path[0]


class NestedNamespacePackageTest(unittest.TestCase):
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Tests/2024-07-13-11-48-20.gh-issue-59022.fYNbQ8.rst
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@@ -0,0 +1 @@
Add tests for :func:`pkgutil.extend_path`. Patch by Andreas Stocker.
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