New submission from Antony Lee <[email protected]>:
Consider the following example:
import pickle
class T:
def __init__(self):
self.attr = self.__foo
def __foo(self):
pass
print(pickle.loads(pickle.dumps(T())))
This fails on 3.6 with `AttributeError: 'T' object has no attribute '__foo'`
(i.e. there's a lookup on the unmangled name). As a comparison, replacing
`__foo` with `_foo` results in working code.
----------
components: Library (Lib)
messages: 313306
nosy: Antony.Lee
priority: normal
severity: normal
status: open
title: Objects referencing private-mangled names do not roundtrip properly
under pickling.
versions: Python 3.7
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Python tracker <[email protected]>
<https://bugs.python.org/issue33007>
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