0

logical and or evaluation in python

>>> 1 and 3 3 >>> 1 or 3 1 can someone explain the result?

5th Jan 2018, 12:07 AM
Prashant
Prashant - avatar
2 ответов
+ 2
it checks the first value if that's true it returns it so 1 or doesn't need to check a second value. 1 and requires a second value to be checked and then returns the last value checked.
5th Jan 2018, 1:17 AM
emmey
emmey - avatar
+ 1
Everything except 0 (no value) - is True (has value): # Logical and 0 and 0 -> 0 0 and 1 -> 0 1 and 0 -> 0 1 and 1 -> 1 # If the left operand is False, it returns 0, else it checks the right and returns it. 0 and 2 -> 0 2 and 0 -> 0 1 and 2 -> 2 2 and 1 -> 1 # Logical or 0 or 0 -> 0 0 or 1 -> 1 1 or 0 -> 1 1 or 1 -> 1 # If the left operand is True, it returns it, no matter what is on the right. 0 or 2 -> 2 2 or 0 -> 2 1 or 2 -> 1 2 or 1 -> 2
5th Jan 2018, 12:00 PM
Boris Batinkov
Boris Batinkov - avatar