bool

Learn True/False values with bool.

The bool type

bool is a logical type with only two values: True and False. These values are the basis of comparisons and conditions.

is_active = True
is_admin = False

bool is actually a special case of int: True = 1, False = 0. So True + True gives 2.

bool values are used in decisions with if and while. Comparison operators (==, <, >) return bool.

Python evaluates every value as if it were bool. Falsy values: 0, 0.0, , [], None. Everything else is truthy.

if 0:
    print("This will not run")
if "text":
    print("This will run")

This behavior is handy with if and while: to say "if not empty" just write if text:.

Assign True to is_active, assign False to is_admin. Then print print(is_active, is_admin).

Show example solution

is_active = True
is_admin = False
print(is_active, is_admin)

Next lesson: str basics