Textbooks:
D. Beazley:
Python Essential Reference.
SAMS, 2nd edition, 2001. (Reference book)
A. Martelli:
Python in a Nutshell.
O'Reilly, 2003. (Reference book)
J. E. Grayson:
Python and Tkinter Programming.
Manning, 2000. (Advanced GUI programming)
D. Harms and K. McDonald:
The Quick Python Book
Manning, 1999. (Comprehensive Python intro)
M. Lutz:
Programming Python.
O'Reilly, second edition, 2001. (Advanced Python programming)
A. Martelli and D. Ascher:
Python Cookbook
O'Reilly, 2002. (Advanced Python recipes)
Overview of Python books