[issue36834] mock.patch.object does not persist __module__ name for functions
Sam Park
report at bugs.python.org
Tue May 7 10:44:21 EDT 2019
New submission from Sam Park <spark.did.a.code at gmail.com>:
The expectation is that the __module__ attribute for a patched function should persist after patching.
Minimal test case is attached. Simply run pytest in a venv with the files.
Output:
def test_zxc():
with mock.patch.object(mymodule, 'asd', side_effect=mymodule.asd, autospec=True) as spy_asd:
> assert spy_asd.__module__ == 'mymodule'
E AssertionError: assert None == 'mymodule'
E + where None = <function asd at 0x7fe4cd6fd620>.__module__
test_mymodule.py:8: AssertionError
Originally reported at https://github.com/pytest-dev/pytest-mock/issues/146 before it was determined this was a unittest.mock issue.
Happens on both Python 2.7 and 3.7. Probably not really tied to a specific Python version and more of mock library issue.
My local venv:
Python 3.7.2
pytest 4.4.1
----------
components: Library (Lib), Tests
files: minimal-test-case.zip
messages: 341738
nosy: spark
priority: normal
severity: normal
status: open
title: mock.patch.object does not persist __module__ name for functions
versions: Python 2.7, Python 3.7
Added file: https://bugs.python.org/file48309/minimal-test-case.zip
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