New user needs help

[wes weston]

John,
    If you really want a var in a function to be a global
version, you need to use the "global" stmt.


a = 4
def foo():
	global a = x

It's probably a good idea to put all global vars at the
top of your file right after your import stmts.

wes

John wrote:
> I am new to using Python. Everytime I run this program it prints "The lowest
> common factor is 0", no matter what numbers I use. Can anybody see anything
> wrong with my program? Thanks in advance.
> 
> 
> 
> def getnum1(a):
>     a = input("What is the first number?")
>     if a == 0:
>         getnum1(a)
> def getnum2(b):
>     b = input("What is the second number?")
>     if b == 0:
>         getnum2(b)
> def euclid(num1, num2, num3, num4):
>     if num1 < num2:
>         num3, num4 = num1, num2
>         num1, num2 = num4, num3
>         euclid(num1, num2, num3, num4)
>     elif num2 != 0:
>         num3, num4 = num1, num2
>         num1 = num4
>         num2 = num3 % num4
>         euclid(num1, num2, num3, num4)
>     else:
>         print "The lowest common factor is: ", num1
> a = 0
> getnum1(a)
> b = 0
> getnum2(b)
> x, y = 2, 100
> euclid(a, b, x, y)
> 
>