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Created on 2002-08-08 12:42 by jiba, last changed 2022-04-10 16:05 by admin. This issue is now closed.
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| File name | Uploaded | Description | Edit | |
| test2.py | jiba, 2002-08-08 12:45 | |||
| Messages (4) | |||
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| msg11876 - (view) | Author: Jiba (jiba) | Date: 2002-08-08 12:42 | |
Deepcopying new style objects can bug if more than one of such objects are deep copied at the same time (E.g. you are deepcopying a list of two new style objects). It seems that , in copy._reconstruct, the "state" variable should be "kept alive" (by passing it to the "_keep_alive" function), since this state may be gc'ed, and another state may be created later with the same address memory / ID. BTW, the same problem may arise with the "args" variable, in the same function. The included file demonstrates the bug. |
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| msg11877 - (view) | Author: Raymond Hettinger (rhettinger) *  |
Date: 2002-08-09 03:43 | |
Logged In: YES user_id=80475 Confirmed on 2.2.1 and 2.3a: Before deepcopying : [11, 12, 13] [21, 22, 23] [31, 32, 33] After deepcopying : [11, 12, 13] [11, 12, 13] [11, 12, 13] |
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| msg11878 - (view) | Author: Jiba (jiba) | Date: 2002-08-12 19:03 | |
Logged In: YES user_id=591223 I have just submitted a patch for fixing this bug -- the patch uses an alternative solution to the one i explained above; i would prefer the patch to the above solution. |
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| msg11879 - (view) | Author: Guido van Rossum (gvanrossum) * |
Date: 2002-08-12 20:22 | |
Logged In: YES user_id=6380 Fixed in CVS, both for Python 2.3 and 2.2.2, using your proposed patch (with a different comment). Thanks! |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-10 16:05:34 | admin | set | github: 37004 |
| 2002-08-08 12:42:12 | jiba | create | |