pycharm - why does my function is returning data type None??: Python datatype None -

this python code printing absolute number. function returning type none. not getting have done wrong. please me.

def n(num):     if num<0:         return (num*-1)  no = input("enter number: ") print "absolute value is: " print n(no) 

def n(num):     if num<0:         return (num*-1)     else:         return num   no = input("enter number: ") print "absolute value is: " print n(no) 

writing else statement return num >= 0

thank :)