GUI Programming with Python: QT Edition

http://www.commandprompt.com/community/pyqt/
さすがに2001年だと古いかな？

Rapid GUI Programming with Python and Qt

Rapid GUI Programming with Python and Qt: The Definitive Guide to PyQt Programming (Pearson Open Source Software Development Series)

去年なんで新しいけど洋書だな...

日本語だとここかな。Qt3までだけど。
http://paison.hp.infoseek.co.jp/paison/qt/index.html