Python Module

A Python module is a .py file that contains Python code and can be imported into other Python scripts. This allows code to be reused across different programs and improves maintainability of a project.

Simple example of Python module

Suppose we have a file named math_ops.py:

# math_ops.py
def add(a, b):
return a + b
def subtract(a, b):
return a - b


Now, we can use these functions in another Python script by importing the math_ops module:

# main.py
import math_ops
print(math_ops.add(5, 3)) # Output: 8
print(math_ops.subtract(5, 3)) # Output: 2


Here, math_ops is a module that we’ve created. It contains two functions, add and subtract. We can then import and use these functions in main.py by using the module name and the function name, separated by a dot.