how does python know the type of variable code example

Example 1: how to check the type of a variable in python

print(type(x))

Example 2: python get type of variable

>>> i = 123
>>> type(i)
<type 'int'>
>>> type(i) is int
True
>>> i = 123.456
>>> type(i)
<type 'float'>
>>> type(i) is float
True