Notice how in Python 2.4, the breakpoint is honored through each iteration through the while loop.

--

chris@feathers:~/development/playground$ python2.4 -m pdb simple.py 
> /home/chris/development/playground/simple.py(3)?()
-> a = 10
(Pdb) b 5
Breakpoint 1 at /home/chris/development/playground/simple.py:5
(Pdb) l
  1     #!/usr/bin/env python
  2  
  3  -> a = 10
  4  
  5 B   while a > 0:
  6         a -= 1      # how do I check the value of a at end of last iter.?
  7  
  8     print "Fin!"
[EOF]
(Pdb) r
> /home/chris/development/playground/simple.py(5)?()
-> while a > 0:
(Pdb) p a
10
(Pdb) r
> /home/chris/development/playground/simple.py(5)?()
-> while a > 0:
(Pdb) p a
9
(Pdb) r
> /home/chris/development/playground/simple.py(5)?()
-> while a > 0:
(Pdb) p a
8
(Pdb)