8000 bpo-43682: @staticmethod inherits attributes by vstinner · Pull Request #25268 · python/cpython · GitHub
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Merged
merged 3 commits into from
Apr 9, 2021
Merged

bpo-43682: @staticmethod inherits attributes #25268

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b50eb07
bpo-43682: @staticmethod inherits method attributes
vstinner Apr 7, 2021
1b1e12b
Factorize tests
vstinner Apr 7, 2021
80469c9
Fix tests
vstinner Apr 8, 2021
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Fix tests
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@vstinner
vstinner committed Apr 8, 2021
commit 80469c901d8a2efde429fed38dd7dfc08c8ab84e
18 changes: 13 additions & 5 deletions Lib/test/test_descr.py
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8000
Original file line number Diff line number Diff line change
Expand Up @@ -1545,7 +1545,9 @@ class D(C):
self.assertEqual(d.foo(1), (d, 1))
self.assertEqual(D.foo(d, 1), (d, 1))
# Test for a specific crash (SF bug 528132)
def f(cls, arg): return (cls, arg)
def f(cls, arg):
"f docstring"
return (cls, arg)
ff = classmethod(f)
self.assertEqual(ff.__get__(0, int)(42), (int, 42))
self.assertEqual(ff.__get__(0)(42), (int, 42))
Expand All @@ -1571,10 +1573,16 @@ def f(cls, arg): return (cls, arg)
self.fail("classmethod shouldn't accept keyword args")

cm = classmethod(f)
self.assertEqual(cm.__dict__, {})
cm_dict = {'__annotations__': {},
'__doc__': "f docstring",
'__module__': __name__,
'__name__': 'f',
'__qualname__': f.__qualname__}
self.assertEqual(cm.__dict__, cm_dict)

cm.x = 42
self.assertEqual(cm.x, 42)
self.assertEqual(cm.__dict__, {"x" : 42})
self.assertEqual(cm.__dict__, {"x" : 42, **cm_dict})
del cm.x
self.assertNotHasAttr(cm, "x")

Expand Down Expand Up @@ -1654,10 +1662,10 @@ class D(C):
self.assertEqual(d.foo(1), (d, 1))
self.assertEqual(D.foo(d, 1), (d, 1))
sm = staticmethod(None)
self.assertEqual(sm.__dict__, {})
self.assertEqual(sm.__dict__, {'__doc__': None})
sm.x = 42
self.assertEqual(sm.x, 42)
self.assertEqual(sm.__dict__, {"x" : 42})
self.assertEqual(sm.__dict__, {"x" : 42, '__doc__': None})
del sm.x
self.assertNotHasAttr(sm, "x")

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6 changes: 4 additions & 2 deletions Lib/test/test_pydoc.py
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Expand Up @@ -1142,7 +1142,8 @@ def sm(x, y):
'''A static method'''
...
self.assertEqual(self._get_summary_lines(X.__dict__['sm']),
"<staticmethod object>")
'sm(...)\n'
' A static method\n')
self.assertEqual(self._get_summary_lines(X.sm), """\
sm(x, y)
A static method
Expand All @@ -1162,7 +1163,8 @@ def cm(cls, x):
'''A class method'''
...
self.assertEqual(self._get_summary_lines(X.__dict__['cm']),
"<classmethod object>")
'cm(...)\n'
' A class method\n')
self.assertEqual(self._get_summary_lines(X.cm), """\
cm(x) method of builtins.type instance
A class method
Expand Down
4 changes: 2 additions & 2 deletions Lib/test/test_reprlib.py
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Expand Up @@ -203,9 +203,9 @@ def test_descriptors(self):
class C:
def foo(cls): pass
x = staticmethod(C.foo)
self.assertTrue(repr(x).startswith('<staticmethod object at 0x'))
self.assertEqual(repr(x), f'<staticmethod({C.foo!r})>')
x = classmethod(C.foo)
self.assertTrue(repr(x).startswith('<classmethod object at 0x'))
self.assertEqual(repr(x), f'<classmethod({C.foo!r})>')

def test_unsortable(self):
# Repr.repr() used to call sorted() on sets, frozensets and dicts
Expand Down
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