Python Modules and Packages

Python Programming

Python Modules and Packages

Beginner Lesson 7 of 10

Modules and Packages

Learn how to organize code into reusable modules and packages.

Creating Modules

mymodule.py

def greet(name):
    return f"Hello, {name}!"

PI = 3.14159

Importing Modules

import mymodule
print(mymodule.greet("Alice"))

from mymodule import greet, PI
print(greet("Bob"))

from mymodule import *  # Import all

import mymodule as mm   # Alias

Standard Library

import os
import sys
import datetime
import json
import random
import math

Creating Packages

mypackage/
    __init__.py
    module1.py
    module2.py
    subpackage/
        __init__.py
        module3.py

Next Steps

Continue to File Handling →