This mailinglist covers all the pocoo derived libraries such as Pygments, Jinja, Werkzeug or any other piece of code found in one of the pocoo repositories. If you encountered a bug please check if there is a trac for that library, and if there is one file a ticket there. Projects in the sandbox do not have a trac, for those you can use this mailinglist too.

If you prefer quick answers you can try the very active #pocoo IRC Channel on freenode.net.