(Pdb) 
Traceback (most recent call last):
  File "<string>", line 716, in fs_callback
  File "<string>", line 680, in write
  File "<string>", line 509, in write
  File "<string>", line 449, in write_faces
  File "<string>", line 449, in write_faces
  File "/Library/Frameworks/Python.framework/Versions/2.4//lib/python2.4/bdb.py", line 48, in trace_dispatch
    return self.dispatch_line(frame)
  File "/Library/Frameworks/Python.framework/Versions/2.4//lib/python2.4/bdb.py", line 67, in dispatch_line
    if self.quitting: raise BdbQuit
bdb.BdbQuit