NB: Booleans

Programming for Data Science

A boolean value takes one of True or False, which are built-in values

check if cache is True, using if statement
if statement using a bool evaluates to True or False

cache = True

if cache:
   print('data will be cached')

data will be cached

print(type(cache))

<class 'bool'>

Booleans are frequently used in if/then statements.

We’ll cover these later.

cache = True
oome = False

if cache or oome:
    print('condition met!')
else:
    print("No dice.")

AND statements will short circuit if an early condition fails.

if oome and cache:
    print('condition met!')

In this case, since oome is False, the check on cache never happens.