4 min read
Modules
Prerequisites: Functions
A module is just a Python file whose functions and variables you can
reuse in another file via import. Python also ships many modules
built in — the standard library — ready to use with no installation.
import math
print(math.sqrt(16))
print(math.pi)
Expected output
4.0
3.141592653589793
You can also import just one specific name:
from math import sqrt lets you write sqrt(16) directly.