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Created on 2018-03-06 05:36 by Antony.Lee, last changed 2022-04-11 14:58 by admin.
| Pull Requests | |||
|---|---|---|---|
| URL | Status | Linked | Edit |
| PR 21480 | open | ZackerySpytz, 2020-07-15 05:57 | |
| Messages (2) | |||
|---|---|---|---|
| msg313306 - (view) | Author: Antony Lee (Antony.Lee) * | Date: 2018-03-06 05:36 | |
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.
|
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| msg349838 - (view) | Author: Josh Rosenberg (josh.r) *  |
Date: 2019-08-16 00:36 | |
This problem is specific to private methods AFAICT, since they're the only things which have an unmangled __name__ used to pickle them, but are stored as a mangled name. More details on cause and solution on issue #37852, which I closed as a duplicate of this issue. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:58:58 | admin | set | github: 77188 |
| 2020-07-15 17:51:11 | serhiy.storchaka | set | nosy:
+ serhiy.storchaka versions: + Python 3.10, - Python 3.6, Python 3.7 |
| 2020-07-15 05:57:05 | ZackerySpytz | set | keywords:
+ patch nosy: + ZackerySpytz pull_requests: + pull_request20623 stage: patch review |
| 2019-08-16 00:36:40 | josh.r | set | nosy:
+ josh.r messages: + msg349838 versions: + Python 3.6, Python 3.8, Python 3.9 |
| 2019-08-16 00:34:52 | josh.r | link | issue37852 superseder |
| 2018-03-09 20:21:18 | terry.reedy | set | nosy:
+ alexandre.vassalotti |
| 2018-03-06 05:36:52 | Antony.Lee | create | |