Feature Requests item #1634717, was opened at 2007-01-13 14:53
Message generated for change (Comment added) made by gbrandl
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Category: Python Library
Group: None
>Status: Closed
>Resolution: Accepted
Priority: 5
Private: No
Submitted By: Gabriel Genellina (gagenellina)
Assigned to: Nobody/Anonymous (nobody)
Summary: csv.DictWriter: Include offending name in error message
Initial Comment:
In csv.py, class DictWriter, method _dict_to_list, when rowdict contains a key
that is not a known field name, a ValueError is raised, but no reference to the
offending name is given.
As the code iterates along the dict keys, and stops at the first unknown one,
its trivial to include such information.
Replace lines:
if k not in self.fieldnames:
raise ValueError, "dict contains fields not in fieldnames"
with:
if k not in self.fieldnames:
raise ValueError, "dict contains field not in fieldnames: %r" % k
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>Comment By: Georg Brandl (gbrandl)
Date: 2007-03-13 09:32
Message:
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Originator: NO
Patch was applied, closing this as Accepted.
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Comment By: Mark Roberts (mark-roberts)
Date: 2007-01-15 00:04
Message:
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Originator: NO
Even better would be a list of all extraneous fields fields.
I offered patch 1635454.
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