Created on 2011-06-01 01:39 by austin1howard, last changed 2011-06-01 02:20 by rhettinger. This issue is now closed.
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| File name | Uploaded | Description | Edit | |
| python_bug.py | austin1howard, 2011-06-01 01:39 | Example of bug report | ||
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| msg137410 - (view) | Author: Austin Howard (austin1howard) | Date: 2011-06-01 01:39 | |
When creating a class which contains elements that are lists, the lists for different instances of the class are not independent. Calling self.mylist.append(3) inside a class method will update the mylist variable for *all* instances of the class, not just the current instance. Attached is a script which demonstrates this behavior. |
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| msg137412 - (view) | Author: Raymond Hettinger (rhettinger) *  |
Date: 2011-06-01 02:20 | |
Sorry, that is correct behavior for class variables. To get your intended effect (independent lists) do the list instantiation inside the __init__ method. |
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| History | |||
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| Date | User | Action | Args |
| 2011-06-01 02:20:58 | rhettinger | set | status: open -> closed nosy: + rhettinger messages: + msg137412 resolution: invalid |
| 2011-06-01 01:39:52 | austin1howard | create | |