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Created on 2012-08-01 12:05 by ddvoinikov, last changed 2022-04-11 14:57 by admin. This issue is now closed.
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| msg167116 - (view) | Author: Dmitry Dvoinikov (ddvoinikov) | Date: 2012-08-01 12:05 | |
The following line prints different things each time you run it:
python3 -c "print(', '.join({ '1': '2', '3': '4' }.keys()))"
The output is either "1, 3" or "3, 1". Is such indeterministic behavior intentional ?
Using Python 3.3.0b1 (default, Aug 1 2012, 06:09:44)
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| msg167121 - (view) | Author: Antoine Pitrou (pitrou) *  |
Date: 2012-08-01 12:45 | |
Yes, because hash randomization is now enabled by default: http://docs.python.org/dev/reference/datamodel.html#object.__hash__ If you want deterministic behaviour, just set e.g. PYTHONHASHSEED=0. (or any other fixed value) |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:57:33 | admin | set | github: 59729 |
| 2012-08-01 12:45:34 | pitrou | set | status: open -> closed resolution: not a bug |
| 2012-08-01 12:45:05 | pitrou | set | nosy:
+ pitrou messages: + msg167121 |
| 2012-08-01 12:05:30 | ddvoinikov | create | |