[issue18219] csv.DictWriter is slow when writing files with large number of columns

[Mariatta Wijaya]

Mariatta Wijaya added the comment:

Inada-san, Victor, thank you.

Here is the updated patch.

----------
Added file: http://bugs.python.org/file45174/issue18219v7.patch

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18219>
_______________________________________