[issue23171] csv.writer.writerow() does not accept generator (must be coerced to list)

[Jon Dufresne]

Jon Dufresne added the comment:

I have created an initial patch such that writerow() now allows generators. I have also added a unit test to demonstrate the fix.

The code now coerces iterators (and generators) to a list, then operates on the result. I would have preferred to simply iterate over the argument, however, there is a special case where the length of the argument is exactly 1. So coercing to a list makes checking the length simpler.

All feedback welcome.

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keywords: +patch
Added file: http://bugs.python.org/file37609/csv-gen.patch

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