The parameter would not be a new feature since the codecs docs states that:
"The StreamReaderWriter allows wrapping streams which work in both
read and write modes".

The reader (StreamReader) accepts the parameter, so it's expected that
StreamReaderWriter does the same.

I'm not sure how to submit a patch.
So, I'm submitting a new codecs.py file through the issue track
interface (issue 8630).
If it's not that in that way, could you please tell me the path?
André.

2010/5/6 Marc-Andre Lemburg <report@bugs.python.org>:
>
> Marc-Andre Lemburg <mal@egenix.com> added the comment:
>
> André: Could you provide a patch ?
>
> Thanks.
>
> ----------
> assignee: benjamin.peterson ->
>
> _______________________________________
> Python tracker <report@bugs.python.org>
> <http://bugs.python.org/issue8630>
> _______________________________________
>