Python Modulo Why Is 1-4 %5 Not The Same As (1-4)%5

Does anyone know why the code below does not have the same outcome in Python? Why do I need the parenthesis to get the correct outcome? #example 1 print 1-4 %5 outcome: -3 #exampl

Solution 1:

This is due to operator precedence. Mod (%) takes precedence over -, so:

1-4 % 5 == 1 - (4 % 5) == 1 - 4 == -3

but

(1-4) % 5 == -3 % 5 == 2

Solution 2:

Python operator precedence has minus just lower than modulus

http://www.mathcs.emory.edu/~valerie/courses/fall10/155/resources/op_precedence.html

*, /, % Multiplication, division, remainder
+, -    Addition, subtraction