Python Accelerator · Tosa certification
Let Python do
the busywork.
The course for solopreneurs who are done with repetitive tasks: follow-ups, reports, monitoring, posting. In 12 weeks, you go from your first line of code to your own tools, with a trainer who checks in with you every week.

100 h
of training, fully online
11
projects, reviewed on video
12 wks
with a weekly check-in
RS6962
Tosa Python certification

In short
Python does the work, you call the shots
The Believemy Python Accelerator is a 100-hour online course over 12 weeks. You learn to write your own programs to automate your work, up to the Tosa certification (RS6962).

Who it is for
Solopreneurs, employees and complete beginners. No prerequisites: a placement test adapts the path to your level.

How it works
9 modules, 11 projects reviewed on video and 25 quizzes, at your own pace. Your trainer checks in with you every week.

At the end
The Tosa Python certification (RS6962), awarded by Isograd from 551 points out of 1,000. The exam is included in the price.
Believemy is a Qualiopi-certified training organization based in Paris.
What you will automate
You run the whole business alone. Python can take part of the load.
Every week, the same tasks eat hours of your time. Here is what you will hand over to your own programs by the end of the course.
Today
Every Monday, you look up who has not paid and write the reminders one by one.
With Python
On Monday morning, the script finds the overdue invoices and sends the reminders on its own.
import smtplib, datetime if datetime.date.today().weekday() == 0: for client in overdue_clients(): send_reminder(client)You learn it in module 8 · smtplib
The syllabus
Nine modules, from your first line to a finished program
100 hours, in the order you take them. New sessions open every Monday, and each major part ends with a graded quiz.
You set up your work environment and write your first lines of code in the very first hour: variables, data types, user input. An orientation step adapts the rest to your level.
In practice
5 hours of exercises on variables and types.




Python Accelerator
- 100 hours over 12 weeks, no fixed schedule
- 11 projects, reviewed on video
- 25 quizzes, including a final one
- A weekly check-in, a video call whenever you need one
- Tosa certification and a mock exam included
- Lifetime access to the content
The projects
Eleven projects to learn by building
You put what you learned together to build real programs. Your trainer reviews every project on video, or builds it step by step with you when it is guided.
Guidedbuilt step by step with your trainer
01The Caesar cipher
A program that encrypts and decrypts your messages by shifting each letter of the alphabet.
1h30Module 4
02The hangman game
The full hangman game: a random word, letters guessed one by one and lives running out.
4hModule 4
03GuidedWho Wants to Be a Millionaire?
The TV quiz show in Python: multiple-choice questions and winnings that climb with each right answer.
5hModule 5
04The tortoise and the hare
An animated race with Turtle, where chance decides whether the hare or the tortoise crosses the line.
1h30Module 6
05GuidedThe Snake game
The snake that grows with each fruit it eats, played with the keyboard, with a score and game over.
4hModule 6
06GuidedThe Pong game
Two paddles, a bouncing ball and a score: the 1972 arcade classic, for two players.
5hModule 6
07A BMI calculator with an interface
A window with your input fields: height, weight, and your BMI calculated in one click.
5hModule 6
08GuidedA password manager
A desktop app that generates strong passwords and saves them for each website.
5hModule 6
09A Bitcoin price text alert
A script that fetches the Bitcoin price every day through an API and texts it to you.
5hModule 8
10An Amazon price alert
A bot that watches an Amazon product page and warns you when the price drops.
5hModule 8
11GuidedA bot that posts on X
A bot that logs in to X and posts for you by driving the browser.
5hModule 8
Download the syllabusPDF · 31 pages, in FrenchPlus 25 quizzes to validate each step
Each major part ends with a graded quiz, passed from 70%. The details of every module are in the syllabus.
Your journey
From application to certification, step by step
You know in advance what happens and when. Nothing starts without a conversation with your trainer.
Enrollment
14 days
from signing to your first day
Training
12 weeks
100 hours, at your own pace
Certification
Included
mock exam and exam
Support
18 months
plus lifetime access
Enrollment
Day 1
You apply
A short form is all it takes. We answer within 2 business days.
In the following days
A conversation with your trainer
On a video or phone call, you check together that the course fits your project and your level.
Signature
Your training contract
You sign your contract, then you have 14 days to change your mind, no reason needed.
Before your first day
Your placement test
Every learner takes it: an online questionnaire, sent as soon as you sign, that measures your starting level. Your trainer uses it to adapt your path and prepare your first meeting.
Training · 12 weeks
A Monday, 14 days after signing
Your first day
That morning, you receive your welcome email and your access. Your first sessions are waiting, and you move at your own pace through the week.
Weeks 1 to 12
You learn by building
- 9 modules, 100 hours, no fixed schedule
- 11 projects reviewed on video
- 25 quizzes, passed from 70%
- A weekly check-in, a video call whenever you need one
Certification
At the end of the course
The mock exam
In the real exam format, to measure your level and spot what is left to review.
At least 2 days before the exam
The technical check
On a video call with your trainer: webcam, microphone, connection. On exam day, nothing catches you off guard.
Exam day
The Tosa Python certification
35 questions in 90 minutes, online and proctored. From 551 points out of 1,000, your certificate arrives by email within 10 business days.
If the mock exam shows you need more practice, you keep reviewing with your trainer before taking the exam.
After the course
Up to 18 months after you start
Your trainer is still there
He keeps supporting you, and you keep lifetime access to the content and its updates.

Your follow-up
Your trainer follows your progress, week after week
People who learn alone tend to give up. Here, someone follows your progress and gets you unstuck.
- A check-in every week. Your trainer looks at where you stand and what is holding you back.
- A video call whenever you need one. You book it from your dashboard, and your trainer offers one if your progress slows down.
- Your questions between calls. Under each course session, by email or on the learners' Discord.
- A video review of every project. You compare your solution and fill the gaps.
- Support for up to 18 months. Beyond the 12 weeks, your trainer is still there.

Your trainer
Louis-Nicolas Leuillet
Trainer and founder of Believemy
Louis-Nicolas designed the Python course and teaches it himself: he writes the content, follows every learner, reviews the projects and prepares you for the certification.
He holds a bachelor's degree from SUPINFO, has been a freelance developer since 2017, and worked in instructional design at OpenClassrooms before founding Believemy.
170,000
subscribers on his YouTube channel
Since 2017
as a freelance developer
The certification
A recognized certification to prove what you can do
The course prepares you for "Programming and automating tasks with Python (Tosa)", registered with France compétences under number RS6962. The test is adaptive: question difficulty follows your level.
35
questions
90 min
online, proctored
551
out of 1,000 points to pass
A mock exam in the real format and the certification exam itself are included in the price. The certificate arrives by email within 10 business days.

Results
Our results, published as they are
Like every Qualiopi-certified training organization, Believemy publishes the result indicators of its courses. They are updated every 6 months.
Result indicator
End-of-course satisfaction
Coming soon
The Python track opened in 2026 and no end-of-course questionnaire has been received yet. The rate will be published here as soon as the first answers come in.
Result indicator
Tosa Python certification pass rate (RS6962)
Coming soon
The Python course opened in 2026 and no candidate has taken the exam yet. The rate will be published here after the first attempts.
170,000
subscribers on your trainer's YouTube channel
4.9/5
on Trustpilot, from more than 100 reviews
12,000
members registered on the Believemy platform
The course at a glance
Everything you need to know before you enroll, in one place.
- Who it's for
Open to everyone, no technical prerequisites. A computer and an internet connection are enough. A conversation with your instructor comes before enrollment, and a placement test opens the course.
- Objectives
- Master Python syntax, functions and advanced programming concepts.
- Handle data types and apply object-oriented programming.
- Use and create modules, manage dependencies and virtual environments.
- Analyze your code's performance, optimize, test and debug it.
- Duration
12 weeks, or 100 hours (about 8 hours a week). Part time: 24 weeks, about 4 hours a week. Your instructor supports you for up to 18 months after your start date.
- Enrollment
Open enrollment. After the conversation with your instructor and the signature of your contract, your training starts on a Monday, 14 days after signing. The course is fully online.
- Price
€1,500, paid in 3 interest-free installments. The price includes a mock exam in the real format and the Tosa certification exam.
- Funding
Pay yourself in 3 interest-free installments, or have your employer or your OPCO (skills operator) cover the course: we provide the quote and the training agreement. If you are self-employed, you can also apply to your training insurance fund. French CPF funding will be available from early 2027.
- Methods
Video and text sessions, exercises, guided projects, quizzes, one-on-one follow-up by your instructor, questions under each session and peer support on Discord.
- Assessment
A quiz at the end of each major section, to be passed with at least 70% to complete the course, then the Tosa Python certification (35 questions in 90 minutes, taken online under supervision).
- Certification
“Programmer et automatiser des tâches avec Python (Tosa)”, registered in the France compétences Répertoire spécifique under number RS6962 on 18/12/2024, until 18/12/2027. Certifier: Isograd. It is awarded from 551 points out of 1,000 and has no skill blocks. It has no equivalence or bridge with other certifications. It lets you use Python in your job (automation, data analysis) or continue toward a developer path.
- Next steps and career outcomes
The certification validates skills sought for junior Python developer, data analyst, tester or test automation roles, and for any job that involves automating tasks. After the course, you can go deeper into Python in one field (data, artificial intelligence, automation), take our Web Developer course, or prepare a digital degree such as the French Web and Mobile Web Developer professional title (level 5).
- Results
End-of-course satisfaction: the Python track opened in 2026 and no end-of-course questionnaire has been received yet; the rate will be published here as soon as the first answers come in. Tosa Python certification pass rate: no candidate has taken the exam yet; the first results will be published here. Updated every 6 months.
- Disability
The course is open to people with disabilities. Your disability contact, Louis-Nicolas Leuillet, will work out possible accommodations with you: write to hello@believemy.com.
- Contact
Louis-Nicolas Leuillet, your instructor and learning contact: hello@believemy.com.
Believemy is a Qualiopi-certified training organization. The quality certification was granted for the following category of action: training actions.

CPF funding
Waiting for CPF funding? We will let you know.
Funding through your personal training account (CPF) will be available from early 2027. Leave your email: you will hear from us as soon as it opens, and you can apply then.
FAQ
Before you start
Your first automation starts on a Monday
Enrollment is open all year: you start on a Monday, 14 days after signing your contract.
CPF funding available from early 2027 · 14 days to change your mind after signing






