[Tutor] need help with conditionals

[Lie Ryan]

wrobl1rt at cmich.edu wrote:
> Hello all, 
> I am still very new to Python and am working on conditionals. Im stuck on this 
> problem and I'm sorry if this is something really simple that I'm missing but its 
> been really frustrating me. Here's a copy of the problem, and sorry if its really 
> long but its the end question about the logically equivalent expressions I'm 
> stuck on. Anyways, heres a copy of the problem
> 

it works for me...

"""
Python 2.6.1 (r261:67517, Dec  4 2008, 16:51:00) [MSC v.1500 32 bit 
(Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
 >>> def truth_table(expression):
...     print " p      q      %s"  % expression
...     length = len( " p      q      %s"  % expression)
...     print length*"="
...     for p in True, False:
...         for q in True, False:
...             print "%-7s %-7s %-7s" % (p, q, eval(expression))
...
 >>> truth_table("p or q")
  p      q      p or q
=====================
True    True    True
True    False   True
False   True    True
False   False   False
 >>> truth_table("not(p) and not(q)")
  p      q      not(p) and not(q)
================================
True    True    False
True    False   False
False   True    False
False   False   True
 >>> truth_table("not(p or q)")
  p      q      not(p or q)
==========================
True    True    False
True    False   False
False   True    False
False   False   True
 >>> truth_table("p and q")
  p      q      p and q
======================
True    True    True
True    False   False
False   True    False
False   False   False

"""

How are you calling the truth_table()?