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| Author | kousu |
|---|---|
| Recipients | kousu |
| Date | 2008年04月01日.19:19:08 |
| SpamBayes Score | 0.048838098 |
| Marked as misclassified | No |
| Message-id | <1207077549.89.0.118557412226.issue2529@psf.upfronthosting.co.za> |
| In-reply-to |
| Content | |
|---|---|
I think I've found a bug in python's list comprehension parser. Observe: >>> [e for i in j in ['a','b','c']] Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name 'j' is not defined Now, according to the grammar at http://docs.python.org/ref/lists.html, a list comprehension is (condensed for clarity): list_comprehension ::= expression list_for list_for ::= "for" target_list "in" old_expression_list [list_for] So a list comprehension should always be [.... for ... in .... for ... in ... for ... in ...] (that is, alternating 'for's and 'in's) but here I have a test case that python happily tries to run that looks like [... for ... in ... in ....] |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2008年04月01日 19:19:10 | kousu | set | spambayes_score: 0.0488381 -> 0.048838098 recipients: + kousu |
| 2008年04月01日 19:19:09 | kousu | set | spambayes_score: 0.0488381 -> 0.0488381 messageid: <1207077549.89.0.118557412226.issue2529@psf.upfronthosting.co.za> |
| 2008年04月01日 19:19:09 | kousu | link | issue2529 messages |
| 2008年04月01日 19:19:08 | kousu | create | |