Python Developer

Build powerful web applications using the popular programming language, Python, and the Django framework.

Training period
12 months full time
Training duration
800 hours supervised

A flexible online program

Imagine starting a brand-new career at any time! Can’t commit to full-time? No problem, study at your own pace.

Real-world projects

Acquire the most relevant skills by completing 13 projects based on those required in your future career.

Individual learning support

Benefit from weekly mentoring sessions with an expert in the field.

OpenClassrooms Certification

Leave with a professional qualification and benefit from our hired or refunded guarantee.*

DevelopmentPython Developer
OpenClassrooms Certification
Training period
12 months full time
Training duration
800 hours supervised

What do Python developers do?

Python developers are in charge of creating software using the Python programming language. They are generally focused on the back end of websites or applications, i.e., the architecture, unlike front-end developers, who manage the visual aspects. 

A Python developer’s role includes:

  • Designing programs to function as clients need them to.
  • Using critical thinking and creativity as you code.
  • Identifying and implementing optimal tools for building or enhancing powerful, modular applications.
  • Using tests to monitor applications and ensure the highest quality service.
  • Providing technical and functional documentation of an application for clients and colleagues.
  • Staying up-to-date with quickly evolving technologies - developers are lifelong learners!

Why complete this training?

The number of software developer jobs is projected to grow by over 20% from 2018 to 2028 due to unprecedented growth in the tech sector (source: US BLS). In particular, Python programming is one of the most in-demand skills in the current job market.

Here at OpenClassrooms, our mission is to make education accessible. OpenClassrooms is a global online education-to-employment platform, designed to teach the skills needed for the most in-demand jobs. We pinpoint the key skills needed to succeed in the job market and create world-class online programs to train our students on those skills. 

That’s why we've developed this 12-month bachelor-level diploma in Python development, which you can complete entirely online with the help of a dedicated mentor.

This training was designed and created by our learning design team in collaboration with a committee of Python experts. It consists of 13 projects of increasing complexity. Each project is based on a concrete scenario from the professional world and will allow you to acquire specific skills. Your mission: find solutions, produce professional deliverables, and present them convincingly to a mentor. You will be able to directly apply your experience to the workplace.

What you will learn

By completing this path, you will develop the following Python developer competencies:

  • Set up your development environment using virtual environments and PyCharm.
  • Create web applications using the Django and Django REST frameworks.
  • Develop a secure PostgreSQL database.
  • Enhance applications with testingdebugging, and refactoring.
  • Use technologies like GitHubPostmanHTMLCSSJavaScript, and CircleCI.

...and much more!

At the end of this training, you will have a portfolio of professional projects and earn the Python Developer OpenClassrooms certification.

Salary of a Python developer

Software development can be a lucrative career as many opportunities become available the more you gain experience. Here are average salaries of Python developers in 2020:


Python developer salaries in the U.S.

Python developer salaries in the U.K.


Junior: $70,000


2-5 years

2-5 years: $100,000


5+ years

5+ years: $125,000





Career advancement

By following this training, you will be able to work as a Python, Django, Web, or Back-End Developer. 

In the future, you will be able to evolve your career in different ways, including:

  • Diversifying your technical skills to become a full-stack developer, i.e. covering both the back end and the front end.
  • Specializing in a particular technology; you’ll focus on the Django web framework in this training, and there are plenty of others, such as Big Data and DevOps.
  • After a few years of experience collaborating with other developers, you may also choose a more managerial role, as a Lead Developer or a CTO.


To be eligible to earn this path's diploma, candidates must demonstrate proof of one of the following prerequisites:

  • an associate's degree, or equivalent, in computer science, web development, or software development
  • or a high school/secondary school degree, vocational certificate, or equivalent, and at least 2 years of professional experience in IT, web development, or software development

All other candidates will need to go through a specific admissions process. These candidates must have:

  • Language: You will need to provide a certificate not older than 2 years to demonstrate a minimum level of English B2.

    Certificates accepted:

    • English Diploma from a secondary institution (private or public) or an accredited higher learning institution
    • Linguaskill minimum score: 160
    • BULATS minimum score: 60
    • TOEIC minimum score: 785
    • IELTS minimum score: 6.5
    • TOEFL iBT minimum score: 88
    • Cambridge FCE / CAE / BEC HIGHER / BEC VANTAGE minimum score or grade: B or 160
    • Certificate from a language center demonstrating a minimum level of B2 (including the number of training hours completed and the company signature or stamp)

    Don’t have one of these certificates? Find out where to take an exam.

  • Equipment: Candidates must also have access to a computer (PC or Mac), headphones, a microphone, a webcam, and a good internet connection for mentoring sessions (3.2 Mbps upload and 1.8 Mbps for download). In addition, to master the skills on this path, you will need to:
    • Have at least 8 GB of RAM (16 GB is more comfortable) and 100 GB of storage space available on your computer.
    • Have administrator rights to your computer in order to install required programs.

Your diploma

  • OpenClassrooms is an online training educational establishment, declared as such by the French authority ‘le rectorat de l'Académie de Paris’.

  • Once you’ve completed your training program, and subject to validating your skills, you will receive the OpenClassrooms standard diploma "Python Developer".

Hired or refunded guarantee

  • You find a job in the 6 months following the date of validation of your last path project.

  • Otherwise, we guarantee the reimbursement of your tuition.*
    See more details

DevelopmentPython Developer
OpenClassrooms Certification
Training period
12 months full time
Training duration
800 hours supervised

A teaching method based on practical experience.

  • Acquire key skills for your future career with real-world projects.

  • Make progress with the support of an experienced professional.

  • Acquire concrete know-how and demonstrate it with a portfolio.

Detailed projects and skills

project 1

Take Ownership of Your Learning on the Python Developer Path

In our changing world, being skilled in learning is more important than ever. Become an active, autonomous learner to set yourself up for success.
8 hours supervised
Skills acquired in this project
  • Prepare for your training
project 2

Use Python Basics for Market Analysis

You work as a marketing analyst at an online bookshop and want to survey your competition. Use Python to track your rivals' prices.
60 hours supervised
Skills acquired in this project
  • Use version control with Git and GitHub
  • Manage data using ETL (extract, transform, load)
  • Apply the fundamentals of programming in Python
project 3

Design a Python Application Tailored to a Client's Needs

Your agency has a new client, an online mentoring service that would like to develop an application with Python. Interpret your client's needs and create a prototype.
60 hours supervised
Skills acquired in this project
  • Model a technical solution for a client using domain models and wireframes
  • Identify functional application requirements based on client needs
  • Manage a code project using agile methodology
project 4

Develop a Software Program Using Python

The local chess club needs help. You are working as a freelancer, and they have asked you to write a new program to help them manage their events. Time to put your new skills in developing high-quality Python software to use!
80 hours supervised
Skills acquired in this project
  • Use object-oriented programming to develop a Python program
  • Write robust Python code using PEP 8
  • Structure the code of a Python program using a design pattern
project 5

Evaluate Your Python Language Skills

Complete this exercise to check your proficiency in the Python programming language before continuing on to your next project.
1 hour
Skills acquired in this project
  • For this project, you will apply previously validated skills to a technical test context.
project 6

Develop a User Interface for a Python Web Application

As a developer at a streaming company, you have been entrusted with a new project: code the user interface of a Flask web application in HTML, CSS, and JS. It’s a great opportunity to gain experience using an API!
40 hours supervised
Skills acquired in this project
  • Develop a user interface using HTML, CSS, and JS
  • Interact with an API
project 7

Solve Problems Using Algorithms in Python

You’ve joined a finance company and have been tasked with making investment programs more competitive. Design an algorithm in Python to maximize profits earned by client!
60 hours supervised
Skills acquired in this project
  • Deconstruct a computational problem
  • Develop an algorithm to solve a problem
project 8

Evaluate Your Algorithmic Problem-Solving Skills in Python

Complete this exercise to check your proficiency using algorithms in Python before continuing on to your next project.
1 hour
Skills acquired in this project
  • For this project, you will apply previously validated skills to a technical test context.
project 9

Develop a Web Application Using Django

You’ve just been hired as lead Python developer at a new startup. Use the powerful Django framework to make their digital product a reality!
105 hours supervised
Skills acquired in this project
  • Develop a web application using Django
  • Use server-side rendering in Django
project 10

Create a Secure RESTful API Using Django REST

Take your Django skills to the next level by building and documenting a RESTful API in compliance with OWASP and GDPR security standards.
80 hours supervised
Skills acquired in this project
  • Create a RESTful API using Django REST
  • Document an application
  • Secure an API to comply with OWASP and GDPR standards
project 11

Enhance a Python Web Application With Testing and Debugging

Improve an existing Flask application. Fix errors and add functionalities using test-driven development. But watch out! Get to know the app inside and out and stay on your toes, you may be faced with last minute requests!
100 hours supervised
Skills acquired in this project
  • Set up a Python environment
  • Debug the code in a Python application
  • Implement a Python test suite
  • Manage errors and exceptions in Python
project 12

Develop a Secure Back-End Architecture Using Django ORM

Save your events management firm from a PR disaster by developing a secure backend API architecture. Use Django ORM and the Django REST framework to deliver customer relationship management (CRM) software.
80 hours supervised
Skills acquired in this project
  • Design the architecture of a relational database using DDD
  • Implement a secure database with Django ORM and PostgreSQL
project 13

Scale a Django Application Using Modular Architecture

Your new employer relies on a monolithic, unscalable Django website. It's up to you to improve its architecture and deployment, and to set up a system for monitoring the code!
125 hours supervised
Skills acquired in this project
  • Manage code production using CI/CD methodology
  • Apply a modular architecture in a Python application
  • Set up a code monitoring system using Sentry
  • Refactor an application to reduce technical debt
  • Deploy an application

One-to-one learning support

  • Benefit from weekly individual mentoring sessions with an expert in the field.

  • Progress rapidly through projects thanks to their expertise in sharing know-how.

The OpenClassrooms community

  • Count on our solid student community to give you support 24-7.

  • Share your doubts or queries with a comprehensive network of students, mentors, and graduates.

How exactly will I learn on an OpenClassrooms path?

From choosing what to study to starting their new career, our students describe their experiences and the support they received at every step of the way.

See step-by-step experience

Pay for your path

Monthly subscription: The flexible, customizable option

For everyone.

  • Flexible start date and study schedule

  • Non-binding subscription: Stop at any time

  • The faster you finish, the less it costs

  • Hired or refunded guarantee*

€480 per month

for an estimated duration of 12 months amounting to €5,760.

Enroll now

This training program requires an estimated time commitment of 1600 hours, including 800 hours supervised.

The total training duration consists of:

  • 800 hours supervised with projects, coached by mentors
  • 800 hours guided with courses and educational resources

The training period can be extended in the case of part time training.
The average duration is estimated and depends on your entry level into training, the time allocated per week, your availability, your capacity, and learning pace.

Interested in this path for your company?

Get a quote or a demo

*Subject to the conditions set out in the Terms of Service

Training program last updated on Dec 21, 2023