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Python Courses

68 Free Interactive Courses

Browse every Python course on Coddy. Each course runs in your browser with AI-assisted hints, real exercises, and a certificate on completion.

Beginner Challenges - Practice Basic Concepts

Popular

Put your beginner coding knowledge to test and try to solve this programming challenges, use any language you want, Happy Coding!

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Certificate on completion

  • 20
  • 20

Coding Problems

Popular

Put your programming problem solving skills to the test using the exercises with different difficulties in this course. Designed for coders with some prior knowledge of the basic syntax in any programming language.

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Certificate on completion

  • 32
  • 31

Stack - Data Structures Series #1

Popular

In this course, you will learn about the Stack data structure, create a Stack from zero using your preferred language, and practice coding challenges with it!

Data Structures
  • 13
  • 6
  • 1

Pandas Analytics

Popular

In this course you will learn how to handle tables in python using pandas

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Certificate on completion

  • 19

Coding Problems: Volume 2

Popular

Put your programming problem solving skills to the test using the exercises with different difficulties in this course. Designed for coders with some prior knowledge of the basic syntax in any programming language. This course is an extension of the first Coding Problems

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Certificate on completion

  • 25
  • 24

Numpy Fundamentals

Popular

Learn to master powerful numerical computations in Python for data science with this concise, hands-on course.

  • 18
  • 34

API in Python

Popular

Learn How To Fetch And Post to API Server using Python

  • 10
  • 8

Hash Tables - Data Structures Series #4

Popular

In this course, you will learn about the Hash Table data structure, create a Hash Table from zero using your preferred language, and practice coding challenges with it!

Data Structures
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Certificate on completion

  • 14
  • 12

Linked List - Data Structures Series #5

Popular

In this course, you will learn about the Linked List data structure, create a Linked List from zero using your preferred language, and practice coding challenges with it!

Data Structures
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Certificate on completion

  • 14
  • 6
  • 1

Python JSON

Popular

In this course, you will learn about JSON and dive into the json library in Python, and master it!

  • 9

Binary Tree - Data Structures Series #3

Popular

In this course, you will learn about the Binary Tree data structure, create a Binary Tree from zero using your preferred language, and practice coding challenges with it!

Data Structures
  • 13
  • 5
  • 1

Heaps & Priority Queues - Data Structures Series #7

Popular

In this course, you will learn about the Heap data structure (the backbone of priority queues), create a MinHeap from zero using your preferred language, and practice coding challenges with it!

Data Structures
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Certificate on completion

  • 14
  • 6
  • 1

Calculator project using Python

Popular

In this course you will create full working console calculator with python, step by step but also without giving you the code. In the end you will have your own code!

  • 29
  • 6

Clean Code - Write better code using Python

Popular

This course will give you the tools to write better code using Clean Code principles with Python language, Happy Coding!

  • 28

Doubly Linked List - Data Structures Series #6

Popular

In this course, you will learn about the Doubly Linked List data structure, create a Doubly Linked List from zero using your preferred language, and practice coding challenges with it!

Data Structures
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Certificate on completion

  • 14
  • 6
  • 1

Python Iterators

Popular

In this course you will learn about iterators in Python and practice your knowledge, after this course you will be able to master this topic!

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Certificate on completion

  • 13

Queue - Data Structures Series #2

Popular

In this course, you will learn about the Queue data structure, create a Queue from zero using your preferred language, and practice coding challenges with it!

Data Structures
  • 12
  • 5
  • 1

Recursion Challenges - Master The Recursive Thinking

Popular

Recursion is an important concept in computer science and a very powerful tool in writing algorithms. In this course, you will use recursion to solve challenges from beginner to advanced. In the end, you will ace this topic.

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Certificate on completion

  • 15
  • 15

Star Pattern Bootcamp

Put your programming problem solving skills to learn how to print star patterns range from simple to complex, involving different levels of nested loops, conditional statements, and mathematical calculations.

  • 30
  • 28

RegEx in Python

Unlock the power of regular expressions in Python with this concise and practical course. Learn to master text searching, pattern matching, and data extraction with real-world examples and hands-on challenges.

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Certificate on completion

  • 28

Interview Coding Challenges - X

Are you ready for your next coding interview? Test your knowledge and skills with these challenges and be prepared for your next interview, Happy Coding

Interview Preparation
  • 3
  • 3

User Class - OOP Project

In this project, you will create a User Class and practice your object oriented programming skills in a programming language of your choice!

  • 8
  • 1
  • 2

Dictionary in Python

Explore the dynamic world of Python dictionaries, from fundamental concepts to advanced applications, and enhance your Python programming skills with hands-on exercises.

  • 14

Playing Cards Generator (Text Based)

In this course you will create text based playing cards generator using your favorite language, Happy Coding!

  • 6
  • 1
  • 1

Interview Coding Challenges - Pack I

Are you ready for your next coding interview? Test your knowledge and skills with these challenges and be prepared. Good luck!

Interview Preparation
  • 3
  • 3

Bubble Sort

Everything About Bubble Sort

  • 11
  • 10

Sets in Python

In this course, you will master Python sets. You'll learn how to create, manipulate, and perform operations on sets through comprehensive lessons and practical challenges. By the end, you'll be proficient in using sets to optimize your Python code.

  • 11

Introduction to Machine Learning

In this course, we will cover how to implement basic supervised learning and unsupervised learning algorithms.

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Certificate on completion

  • 19
  • 3
  • 39

Python Lambda Functions

In this course you will learn about lambda functions in Python, also known as anonymous functions in other languages, after this course you will be able to master this topic!

  • 9

Into the Past || Complete Beginner for Python Strings

In this course you will be learning about strings, slicing, concatenation and equivalency

  • 19

Email validator using Python

In this course, you will create a fully working email validator program that takes input email from the user and outputs whether it's valid email or not!

  • 8
  • 2

Mathematical Riddles

This course will provide ways of thinking and strategies for solving mathematical problems and puzzles using programming.

  • 20
  • 18

Graphs - Data Structures Series #9

In this course, you will learn about the Graph data structure, create an undirected graph from zero in your preferred language, and practice coding challenges with it!

Data Structures
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Certificate on completion

  • 14
  • 12

Tries - Data Structures Series #8

In this course, you will learn about the Trie (prefix tree), create one from zero in your preferred language, and practice coding challenges with it!

Data Structures
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Certificate on completion

  • 14
  • 12

Random Fact Generator - Python Project

In this project you will create a random fact generator using Python with a public API (uselessfacts).

  • 7
  • 2

File Handling in Python

In this course you will learn everything about file handling in Python, from create, read and write to append and delete.

  • 12

Python List Comprehension

List comprehension is a special Python syntax, offers a short and powerful way to create new list from existing one, in this course you will master this concept!

  • 9

Quick Sort - DSA Series

New

Master Quick Sort, one of the fastest sorting algorithms in practice. Build the partition step, write the full recursive sort in your language of choice, analyze its complexity, and practice with coding challenges.

Data Structures
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Certificate on completion

  • 9
  • 3
  • 1
  • 52

Selection Sort - DSA Series

New

Master Selection Sort, one of the simplest sorting algorithms. See how it works step by step, build it from scratch in your language of choice, analyze its complexity, and practice with coding challenges.

Data Structures
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Certificate on completion

  • 9
  • 3
  • 1
  • 54

Currency Converter - Python Project

In this course, you will create a currency converter using Python that can convert amounts between different currencies.

  • 5
  • 1

Dynamic Programming 101

Master the art of solving complex problems efficiently. Boost your problem-solving skills for coding interviews with easy-to-follow lessons and hands-on challenges.

  • 15

Python Decorators

In this course, you'll learn how to use decorators in Python, a powerful tool for modifying the behavior of functions. Practice with a series of coding challenges to reinforce your understanding.

  • 12

Quiz Generator - Python OOP Project

In this course you will create fully working Quiz Generator with python using object oriented programming skills. Happy Coding!

  • 11
  • 3

Prim's Algorithm - Graph Algorithms

New

Master Prim's Algorithm for Minimum Spanning Trees: grow one tree from a start vertex by always adding the cheapest crossing edge. Build it in your language of choice and answer bottleneck-edge and connectivity queries, the counterpart to Kruskal.

Graph Algorithms Courses
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Certificate on completion

  • 9
  • 3
  • 1
  • 55

Counting Sort - DSA Series

New

Master Counting Sort, a non-comparison algorithm that sorts non-negative integers in linear time by tallying values. Build the counting phase, write the full sort in your language of choice, analyze its O(n + k) complexity, and practice with coding challenges.

Data Structures
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Certificate on completion

  • 9
  • 3
  • 1
  • 52

Merge Sort - DSA Series

New

Master Merge Sort, the classic divide and conquer algorithm. Build the merge step, write the full recursive sort in your language of choice, analyze its O(n log n) complexity, and practice with coding challenges.

Data Structures
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Certificate on completion

  • 9
  • 3
  • 1
  • 52

Insertion Sort - DSA Series

Simple yet powerful algorithm. Learn how to efficiently arrange elements, understand time complexity, and enhance your sorting skills. Dive in now!

  • 9
  • 3
  • 1

Interview Coding Challenges - Pack VIII

Are you ready for your next coding interview? Test your knowledge and skills with these challenges and be prepared for your next interview, Happy Coding

Interview Preparation
  • 3
  • 3

Exception Handling in Python

In this chapter, you will learn one of the most important concepts in programming which is Exception Handling. Exception Handling is the key if you want to develop solid and unbreakable programs. Exception Handling is the process of responding to exceptions which breaks program.

  • 16

Register Login System Project

In the course, you will create a basic authorization system to create and manage users.

  • 8
  • 2

Interview Coding Challenges - Pack II

Are you ready for your next coding interview? Test your knowledge and skills with these challenges and be prepared. Good luck!

Interview Preparation
  • 3
  • 3

Kruskal's Algorithm - Graph Algorithms

New

Master Kruskal's Algorithm for Minimum Spanning Trees. Build union-find, grow an MST by adding the cheapest cycle-free edge in your language of choice, and answer connectivity and bottleneck-edge queries.

Graph Algorithms Courses
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Certificate on completion

  • 9
  • 3
  • 1
  • 57

Depth-First Search - Graph Algorithms

New

Master Depth-First Search, a fundamental way to explore a graph. Build the adjacency lookup, write an iterative DFS in your language of choice, analyze its O(V + E) complexity, and use it to count and measure connected components.

Graph Algorithms Courses
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Certificate on completion

  • 9
  • 3
  • 1
  • 54

Heap Sort - DSA Series

New

Master Heap Sort, the array-based binary heap turned into a sorting algorithm. Build the sift-down step, write the full sort in your language of choice, analyze its O(n log n) time and O(1) space, and practice with coding challenges.

Data Structures
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Certificate on completion

  • 9
  • 3
  • 1
  • 54

Interview Coding Challenges - Pack IX

Are you ready for your next coding interview? Test your knowledge and skills with these challenges and be prepared for your next interview, Happy Coding

Interview Preparation
  • 3
  • 3

Interview Coding Challenges - Pack VII

Are you ready for your next coding interview? Test your knowledge and skills with these challenges and be prepared for your next interview, Happy Coding

Interview Preparation
  • 3
  • 3

Python Interview Series

This course contains 12 interview practice questions which are the combination of both easy and medium level. This course challenge you to solve questions within a given time and to have good practice on several topics

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Certificate on completion

  • 12

Interview Coding Challenges - Pack IV

Are you ready for your next coding interview? Test your knowledge and skills with these challenges and be prepared, did you finished the last packs? Happy Coding!

Interview Preparation
  • 3
  • 3

Interview Coding Challenges - Pack III

Are you ready for your next coding interview? Test your knowledge and skills with these challenges and be prepared. Good luck!

Interview Preparation
  • 3
  • 3

Bellman-Ford Algorithm - Graph Algorithms

New

Master the Bellman-Ford algorithm: single-source shortest paths that work with negative edge weights, plus negative-cycle detection. Build a relaxation pass, the full algorithm in your language of choice, and answer distance and cycle queries.

Graph Algorithms Courses
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Certificate on completion

  • 9
  • 3
  • 1
  • 54

Dijkstra's Algorithm - Graph Algorithms

New

Master Dijkstra's Algorithm, the greedy single-source shortest-path method for graphs with non-negative weights. Read weighted edges, build the full distance computation in your language of choice, and answer point-to-point and farthest-vertex queries.

Graph Algorithms Courses
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Certificate on completion

  • 9
  • 3
  • 1
  • 54

Radix Sort - DSA Series

New

Master Radix Sort, a non-comparison algorithm that sorts non-negative integers digit by digit. Build the stable counting-sort pass, write the full sort in your language of choice, analyze its linear-time behavior, and practice with coding challenges.

Data Structures
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Certificate on completion

  • 9
  • 3
  • 1
  • 55

Social media Search Project - Python JSON Fundamentals

In this course you will learn how to manage data in JSON format using Python. We will use this learning to build a Social media search implementation. JSON is a popular way of formatting data and will show up very often in your Python career.

  • 10

AVL Tree - Data Structures Series #10

New

In this course, you will learn about the AVL Tree data structure, build a self-balancing binary search tree from zero in your preferred language, and practice coding challenges with it!

Data Structures
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Certificate on completion

  • 16
  • 6
  • 1

Topological Sort - Graph Algorithms

New

Master Topological Sort, the ordering of a directed acyclic graph so every edge points forward. Compute in-degrees, build an order with Kahn's algorithm in your language of choice, detect cycles, and find the longest path in a DAG.

Graph Algorithms Courses
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Certificate on completion

  • 9
  • 3
  • 1
  • 55

Breadth-First Search - Graph Algorithms

New

Master Breadth-First Search, the layer-by-layer graph traversal behind shortest paths. Build the neighbor lookup, write an iterative BFS with a queue in your language of choice, and use it to find shortest-path distances in unweighted graphs.

Graph Algorithms Courses
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Certificate on completion

  • 9
  • 3
  • 1
  • 54

Interview Coding Challenges - Pack VI

Are you ready for your next coding interview? Test your knowledge and skills with these challenges and be prepared for your next interview, Happy Coding!

Interview Preparation
  • 3
  • 3

Interview Coding Challenges - Pack V

Are you ready for your next coding interview? Test your knowledge and skills with these challenges and be prepared, did you finished the last packs? Happy Coding!

Interview Preparation
  • 3
  • 3

Frequently asked questions

How many Python courses are on Coddy?

Coddy currently has 68 interactive Python courses, covering everything from fundamentals to advanced topics.

Are the Python courses free?

Yes. Every course is free to start, runs in your browser, and ships with AI-assisted hints.

Do I get a Python certificate?

Yes - finish the Python journey and you'll unlock a shareable certificate. See the certifications page for full details.
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