Bugs are tracked in Python Roundup.
Getting started with bug tracking in Launchpad.Ubuntu also tracks bugs for packages derived from this project: python in Ubuntu, python-defaults in Ubuntu, python2.5 in Ubuntu, python2.6 in Ubuntu, python2.7 in Ubuntu, python3.1 in Ubuntu, python3.2 in Ubuntu, python3.3 in Ubuntu, python3.4 in Ubuntu, python3.5 in Ubuntu.
