Why does using 'is' instead of equals ( == ) for comparison of integers return different results in python? -

this question has answer here:

• how test 1 variable against multiple values? 16 answers

def makes10(a, b):  return ((a or b) 10) or (a+b 10)  makes10(9, 10)  false 

i hope above same below, returning different results.

def makes10(a, b):   return (a == 10 or b == 10 or a+b == 10)  makes10(9, 10)  true 

>>> (1 or 10) 10 false >>> (10 or 1) 10 true >>> (1 or 10) 1 

using or , check if either of numbers 10 doesn't work...

the bottom version of makes10() way go. @wooble said, don't use compare integer values.