Guessing the output of code

Question

The question is: What is the output of this code?

if 4%2:
print(1)
else:
print(0)

The output is 0. However, I'm not sure how the code comes to produce this output. Can someone please explain how this code works? Thank you

Answer 1

A modulus operation evaluates as true in an if statement if there is a remainder after division. Since 4/2 does not have a remainder, it returned false, and executes the else block instead.

Answer 2

step by step:

1. the interpreter evaluates '4%2' and gets '0' (zero).
2. the interpreter uses the value of the evaluation in the previous step: 'if 0' and gets False.
(in python 0, None, False, have boolean value False)
3. Because the previous step got a False, the else statement will be evaluated: 'print(0)'

That's how you get a 0 as output.