I have multiple conditions in an if statement:

if x > 0.01 and x < 0.015 and y != 0 and (var_1 == var_2 == 0):
    #do...

Now from the reading i did, the parentheses will be executed first, am i correct in saying that? Secondly, are the parentheses in this example redundent if it does not matter that its checked first?

CodePudding user response：

The chained comparisons in parentheses are equivalent to

(var_1 == var_2 and var_2 == 0)

So your whole expression is equivalent to

if x > 0.01 and x < 0.015 and y != 0 and (var_1 == var_2 and var_2 == 0):

See documentation

The parentheses are redundant and the terms will still be evaluated left to right with short-circuiting.