Python 2.5 long

[Ephexeve]

I have this bit of code, which I copied from my book;

def checkIndex(key):
    if not isinstance(key,(int, long)): raise TypeError
    if key < 0: raise IndexError

But I am currently using Python 3.1, does anyone knows what long is in Python3? Because I am getting an error saying long is not defined, and when I try in Python 2 it works

[dwblas]

Python integers don't have a length, so use int only. If you have huge numbers, then use the decimal class which can handle both extremely small and extremely large numbers. Try this snippet as a test:

x_int = int("123")
print len(x_int) 

[bvdet]

int and long are unified as int in Python 3.X. See PEP 237.

[Ephexeve]

Cool, thanks for the help dudes, that helped!