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gh-65961: Raise DeprecationWarning when __package__ differs from __spec__.parent (#97879)

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Also remove `importlib.util.set_package()` which was already slated for removal.

Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
This commit is contained in:
Brett Cannon 2022-10-05 15:00:45 -07:00 • committed by GitHub
parent 2016bc54a2
commit c206e53bb7
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9 changed files with 45 additions and 102 deletions
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63
Lib/test/test_importlib/test_util.py
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@ -252,69 +252,6 @@ class ModuleForLoaderTests:
) = util.test_both(ModuleForLoaderTests, util=importlib_util)
class SetPackageTests:
"""Tests for importlib.util.set_package."""
def verify(self, module, expect):
"""Verify the module has the expected value for __package__ after
passing through set_package."""
fxn = lambda: module
wrapped = self.util.set_package(fxn)
with warnings.catch_warnings():
warnings.simplefilter('ignore', DeprecationWarning)
wrapped()
self.assertTrue(hasattr(module, '__package__'))
self.assertEqual(expect, module.__package__)
def test_top_level(self):
# __package__ should be set to the empty string if a top-level module.
# Implicitly tests when package is set to None.
module = types.ModuleType('module')
module.__package__ = None
self.verify(module, '')
def test_package(self):
# Test setting __package__ for a package.
module = types.ModuleType('pkg')
module.__path__ = ['<path>']
module.__package__ = None
self.verify(module, 'pkg')
def test_submodule(self):
# Test __package__ for a module in a package.
module = types.ModuleType('pkg.mod')
module.__package__ = None
self.verify(module, 'pkg')
def test_setting_if_missing(self):
# __package__ should be set if it is missing.
module = types.ModuleType('mod')
if hasattr(module, '__package__'):
delattr(module, '__package__')
self.verify(module, '')
def test_leaving_alone(self):
# If __package__ is set and not None then leave it alone.
for value in (True, False):
module = types.ModuleType('mod')
module.__package__ = value
self.verify(module, value)
def test_decorator_attrs(self):
def fxn(module): pass
with warnings.catch_warnings():
warnings.simplefilter('ignore', DeprecationWarning)
wrapped = self.util.set_package(fxn)
self.assertEqual(wrapped.__name__, fxn.__name__)
self.assertEqual(wrapped.__qualname__, fxn.__qualname__)
(Frozen_SetPackageTests,
Source_SetPackageTests
) = util.test_both(SetPackageTests, util=importlib_util)
class SetLoaderTests:
"""Tests importlib.util.set_loader()."""