Variables and data types

A variable is a name that points at a value. Python works out the type from the value itself, so you never declare it.

python

order_id = 1042        # int

amount = 499.0         # float

city = "Bengaluru"     # str

is_paid = True         # bool

coupon = None          # no value yet

print(type(amount))

OUTPUT

The next two sections cover the core types and how to convert between them. Conversion matters more than it sounds: data from files and APIs almost always arrives as text.