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[Bug #1576241] Let functools.wraps work with built-in functions

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Andrew M. Kuchling 2006-10-27 16:39:10 +00:00
parent d3aad0199e
commit 41eb7164df
2 changed files with 8 additions and 1 deletions
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2
Lib/functools.py
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@ -32,7 +32,7 @@ def update_wrapper(wrapper,
for attr in assigned: for attr in assigned:
setattr(wrapper, attr, getattr(wrapped, attr)) setattr(wrapper, attr, getattr(wrapped, attr))
for attr in updated: for attr in updated:
getattr(wrapper, attr).update(getattr(wrapped, attr)) getattr(wrapper, attr).update(getattr(wrapped, attr, {}))
# Return the wrapper so this can be used as a decorator via partial() # Return the wrapper so this can be used as a decorator via partial()
return wrapper return wrapper

7
Lib/test/test_functools.py
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@ -210,6 +210,13 @@ class TestUpdateWrapper(unittest.TestCase):
self.assertEqual(wrapper.attr, 'This is a different test') self.assertEqual(wrapper.attr, 'This is a different test')
self.assertEqual(wrapper.dict_attr, f.dict_attr) self.assertEqual(wrapper.dict_attr, f.dict_attr)
def test_builtin_update(self):
# Test for bug #1576241
def wrapper():
pass
functools.update_wrapper(wrapper, max)
self.assertEqual(wrapper.__name__, 'max')
self.assert_(wrapper.__doc__.startswith('max('))
class TestWraps(TestUpdateWrapper): class TestWraps(TestUpdateWrapper):