Function returns None without return statement

Question

I just learned (am learning) how function parameters work in Python, and I started experimenting with it for no apparent reason, when this:

def jiskya(x, y):
         


        

Answer 1

The problem is you wrote print jiskya(2,3). You're passing the return value of jiskya to the print function. jiskya itself prints x or y, which is why you see the 2. But then the print in the print jiskya(2, 3) statement itself executes with no argument.

To the interpreter, this is a simplification of what happens:

print jiskya(2,3)
>> Executing jiskya with arguments 2, 3
>> jiskya evaulates `print x`
>> 2 is printed
>> Function jiskya exits with no return value
print None
>> None is printed