Does Python Check ALL conditions in an multi-condition if statement? [duplicate]

Question

I am curious if Python will continue checking conditions in an if statement if the first condition returns False. I'm wondering about this because I want to know if best practice is try to check conditions with low time-complexity before more complex checks.

Is there any difference between these two snippets?

if condition_1() and condition_2():
    do_something()

and

if condition_1():
    if condition_2():
        do_something()

Answer 1

Yes, python boolean operators do short-circuit

Both code samples are semantically equivalent, but the first is more readable, as it has lower level of nesting.