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Fix "target" attribute calls via six

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This commit is contained in:
Aniket21mathur 2019-07-13 18:15:02 +05:30 committed by James Cameron
parent ed46c219a9
commit 490a602367
2 changed files with 11 additions and 5 deletions
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2
src/sugar3/dispatch/dispatcher.py
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@ -12,7 +12,7 @@ WEAKREF_TYPES = (weakref.ReferenceType, saferef.BoundMethodWeakref)
def _make_id(target):
if hasattr(target, 'im_func'):
if hasattr(target, 'im_func') or hasattr(target, '__func__'):
return (id(im_self(target)), id(im_func(target)))
return id(target)

8
src/sugar3/dispatch/saferef.py
View File

@ -21,13 +21,19 @@ def safeRef(target, onDelete=None):
goes out of scope with the reference object, (either a
weakref or a BoundMethodWeakref) as argument.
"""
if hasattr(target, 'im_self'):
if hasattr(target, 'im_self') or hasattr(target, '__self__'):
if im_self(target) is not None:
# Turn a bound method into a BoundMethodWeakref instance.
# Keep track of these instances for lookup by disconnect().
if six.PY2:
assert hasattr(target, 'im_func'), \
"safeRef target %r has im_self, but no im_func, " \
"don't know how to create reference" % (target,)
else:
assert hasattr(target, '__func__'), \
"safeRef target %r has __self__, but no __func__, " \
"don't know how to create reference" % (target,)
reference = get_bound_method_weakref(
target=target,
onDelete=onDelete