[Tutor] Compare function!

[Sammy Cornet]

Hello!I´m using Idle (Python 2.7,5 version). I´m trying to  write a program of compare function that returns 1 if a > b , 0 if a == b , and -1
if a < b . In which I´m want to get the user to prompt for the values of a and b. For some reason I can´t run it. The follwing is what I have written on  my script:
def comparefunc (a, b):    a = 3    b = 4    if a < b:       return 1    elif a == b:      return 0    elif a < b:      return -1    print "return"    
And, this is what I get for my output:
Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit (Intel)] on win32Type "copyright", "credits" or "license()" for more information.>>> ================================ RESTART ================================>>> >>>  		 	   		  
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