boolean

instance of bool class. Only True or False. It is often used when checking whether expression is truthy or falsy.

print(100 > 39) # True

print(-1 > 0) # True

print('long text' > 'short') # True

print([1,2,3] == [1,2,3])
# True
# even they are separate object

conversion to boolean

using bool()

print(bool(5)) # True

print(bool(0)) # False

print(bool(0.0)) # False

print(bool('abc')) # True

print(bool('')) # False

negate boolean

using not

is_available = True

print(not is_available) # False