[issue19449] csv.DictWriter can't handle extra non-string fields

[Tomas Grahn]

Tomas Grahn added the comment:

If non-string field names aren't allowed then shouldn't they be caught at an earlier stage, rather then when the user feeds writerow a dict with an unexpected key?

But why should the field names have to be strings in the first place? Everything else is passed through str before being written anyway...

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19449>
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