What does this command do: if i % 2 == 1:

@Sally_Knowles,

i%2 == 1 # odd
i%2 == 0 # even

>>> for i in range(1,10):
...     print(i,i%2)
...
1 1
2 0
3 1
4 0
5 1
6 0
7 1
8 0
9 1
>>>

The % (modulo) operator yields the remainder from the division of the first argument by the second. The numeric arguments are first converted to a common type. A zero right argument raises the ZeroDivisionError exception. The arguments may be floating point numbers, e.g., 3.14%0.7 equals 0.34 (since 3.14 equals 4*0.7+ 0.34 .) The modulo operator always yields a result with the same sign as its second operand (or zero); the absolute value of the result is strictly smaller than the absolute value of the second operand [1].

Python expressions