Do Operators use Lazy evaluation?

[greg nwosu]

does the AND operator evaluate its second operand if the first one evaluates to false?

similarly for OR and IF are the operators lazy?

[Robin Dhillon]

AND refers to both the condition holding true/false and or refers to one of the conditions holding true/false.
for example:

val1 = 5.0
val2 = 6.0
if val1 > 2.0 and val2 < 10.0:
    print(True)

this would fail if val2 was infact greater than 10.0
for the 'OR' case:

val1 = 5.0
val2 = 6.0
if val1 > 2.0 or val2 == 10.0:
    print('only condition one is true')