I am thinking about [python-wart] on SO. There is no currently a list of Python warts, and building a better language is impossible without a clear visibility of warts in current implementations.

Why Roundup doesn't work ATM.
- warts are lost among other "won't fix" and "works for me" issues
- no way to edit description to make it more clear
- no voting/stars to percieve how important is this issue
- no comment/noise filtering
and the most valuable
- there is no query to list warts sorted by popularity to explore other time-consuming areas of Python you are not aware of, but which can popup one day

SO at least allows:
+ voting
+ community wiki edits
+ useful comment upvoting
+ sorted lists
+ user editable tags (adding new warts is easy)

This post is a result of facing with numerous locals/settrace/exec issues that are closed on tracker. I also have my own list of other issues (logging/subprocess) at GC project, which I might be unable to maintain in future. There is also some undocumented stuff (subprocess deadlocks) that I'm investigating, but don't have time for a write-up. So I'd rather move this somewhere where it could be updated.
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anatoly t.