Is there any Python-based Help Desk (bug-tracking system)?

[Alessandro Bottoni]

Dose anybody knows of any bug-tracking or task-tracking system written in
Python?
(I mean: something like GNATS or Jitterbug...)
Is there any example out there?
TIA
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Alessandro Bottoni
(Alessandro.Bottoni at Think3.com)
(alessandro.bottoni at libero.it)
Web Programmer
Think3 inc.
(www.think3.com)