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Created on 2007-12-13 15:41 by mark, last changed 2022-04-11 14:56 by admin. This issue is now closed.
| Files | ||||
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| File name | Uploaded | Description | Edit | |
| bug.py | mark, 2007-12-13 15:41 | |||
| Messages (2) | |||
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| msg58536 - (view) | Author: Mark Summerfield (mark) * | Date: 2007-12-13 15:41 | |
In the attached file there are two tiny functions, flatten1() and
flatten2(). There is only one difference between them:
flatten1() has the line:
if isinstance(x, list):
and flatten2() has this line instead:
if isinstance(x, collections.Sequence):
flatten1() works perfectly in Python 2.5.1 and Python 30a2 (just comment
out the flatten2() code).
But flatten2() goes into "infinite" recursion in Python 30a2 when trying
to flatten list "c".
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| msg58537 - (view) | Author: Guido van Rossum (gvanrossum) *  |
Date: 2007-12-13 17:31 | |
The bug is in your code; a string is considered a sequence but its elements are also strings (of length 1). |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:56:28 | admin | set | github: 45953 |
| 2007-12-13 17:31:03 | gvanrossum | set | status: open -> closed resolution: not a bug messages: + msg58537 nosy: + gvanrossum |
| 2007-12-13 15:41:06 | mark | create | |