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Created on 2017-11-25 22:56 by thedemz, last changed 2022-04-11 14:58 by admin. This issue is now closed.
| Messages (3) | |||
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| msg306977 - (view) | Author: Martin (thedemz) | Date: 2017-11-25 22:56 | |
>>> x = {"x":123}.update({"abc":123})
>>> type(x)
<class 'NoneType'>
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| msg306978 - (view) | Author: Eric V. Smith (eric.smith) *  |
Date: 2017-11-25 23:07 | |
dict.update() returns None, so this is expected. Maybe you want:
>>> x = {"X":123}
>>> x.update({"abc":123})
>>> x
{'X': 123, 'abc': 123}
>>>
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| msg306979 - (view) | Author: Serhiy Storchaka (serhiy.storchaka) * |
Date: 2017-11-25 23:14 | |
The update() method returns None. This is a correct behavior. The rationale is the same as for list.sort(), see https://docs.python.org/3/faq/design.html#why-doesn-t-list-sort-return-the-sorted-list. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:58:54 | admin | set | github: 76316 |
| 2017-11-25 23:14:09 | serhiy.storchaka | set | nosy:
+ serhiy.storchaka messages: + msg306979 |
| 2017-11-25 23:07:44 | eric.smith | set | status: open -> closed nosy: + eric.smith messages: + msg306978 resolution: not a bug stage: resolved |
| 2017-11-25 22:56:23 | thedemz | create | |