Python Check for decimals
Question: i'm making a program which divides a lot of numbers and I want to check if the
number gets decimals or not. I also want it to print those decimals. Example:

    
    
    foo = 7/3
    if foo has a 3 in the decimals: (Just an example of what I want to do there)
        print("It works!)
    elif foo has no decimals: (another example)
        print("it has no decimals")
    

EDIT: Ok, so since "check which decimal is afterwards" brought some confusion,
let me explain. I want to be able to check IF a number has decimals. For
example, 7/3 (foo) gives me decimals, but I want python to tell me that
without me having to do the math. forget the "which decimal" part


Answer: If you just want to test whether a division has decimals, just check the
modulo:

    
    
    foo = a % b
    if foo != 0:
        # Then foo contains decimals
        pass
    
    if foo == 0:
        # Then foo does NOT contain decimals
        pass
    

However (since your question is a bit unclear) if you want to split the
integer and decimal parts then use
[`math.modf()`](https://docs.python.org/2/library/math.html#math.modf)
function:

    
    
    import math
    x = 1234.5678
    math.modf(x) # (0.5678000000000338, 1234.0)
    

