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Created on 2016-05-24 01:37 by memeplex, last changed 2022-04-11 14:58 by admin. This issue is now closed.
| Messages (3) | |||
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| msg266212 - (view) | Author: Memeplex (memeplex) | Date: 2016-05-24 01:37 | |
In [1]: mv = memoryview(b'123')
In [2]: mv.__reduce__()
TypeError: can't pickle memoryview objects
But then:
In [3]: pickle.dumps(mv)
b'\x80\x03cbuiltins\nmemoryview\nq\x00)\x81q\x01.'
Even worse:
In [4]: pickle.loads(pickle.dumps(mv))
TypeError: Required argument 'object' (pos 1) not found
According to the module documentation: Attempts to pickle unpicklable objects will raise the PicklingError exception.
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| msg266218 - (view) | Author: Xiang Zhang (xiang.zhang) *  |
Date: 2016-05-24 03:10 | |
I cannot reproduce this. Pickling memoryview objects works well on my OS. Python 3.5.1+ (default, Mar 30 2016, 22:46:26) [GCC 5.3.1 20160330] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import pickle >>> mv = memoryview(b'123') >>> mv.__reduce__() Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib/python3.5/copyreg.py", line 65, in _reduce_ex raise TypeError("can't pickle %s objects" % base.__name__) TypeError: can't pickle memoryview objects >>> pickle.dumps(mv) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: can't pickle memoryview objects |
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| msg266228 - (view) | Author: Serhiy Storchaka (serhiy.storchaka) * |
Date: 2016-05-24 05:47 | |
This was fixed in issue22995. Please wait 3.5.2. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:58:31 | admin | set | github: 71285 |
| 2016-05-24 05:47:03 | serhiy.storchaka | set | status: open -> closed nosy: + serhiy.storchaka messages: + msg266228 resolution: out of date stage: resolved |
| 2016-05-24 03:10:23 | xiang.zhang | set | nosy:
+ xiang.zhang messages: + msg266218 |
| 2016-05-24 01:37:55 | memeplex | create | |