Python 2.3.4 (#2, Sep 24 2004, 08:39:09)
[GCC 3.3.4 (Debian 1:3.3.4-12)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pdb
>>> def foo():
...   pdb.set_trace()
...
>>> foo()
--Return--
> /usr/lib/python2.3/pdb.py(992)set_trace()->None
-> Pdb().set_trace()
(Pdb) l
987
988     def runcall(*args):
989         return Pdb().runcall(*args)
990
991     def set_trace():
992  ->     Pdb().set_trace()
993
994     # Post-Mortem interface
995
996     def post_mortem(t):
997         p = Pdb()
(Pdb)