How to have multiple conditions for one if statement in python

So I am writing some code in python 3.1.5 that requires there be more than one condition for something to happen. Example:

def example(arg1, arg2, arg3):
    if arg1 == 1:
        if arg2 == 2:
            if arg3 == 3:
                print("Example Text")

The problem is that when I do this it doesn't print anything if arg2 and arg3 are equal to anything but 0. Help?