Training Flask - Create High-Performance Python Web Apps

$5,775

  • 5 days
  • Onsite
  • 10 people max.
Ref: BJR388
10 people max.
$5,775
In-company rate: from $10,395 for the whole team
On-site and certification exam on quote
5 days
Onsite

Don't let this gap widen

Why this program matters

  • Without this training, risk 40% of your time lost to basic Flask bugs, like misconfigured routes causing 70% of junior web app failures.

  • Your projects drag on for months, frustrating clients and employers, with a 50% dropout rate among self-taught developers.

  • Lose freelance opportunities at 3000€/mois because 80% of offers require Flask.

  • Avoid security vulnerabilities exposing data (RGPD fines up to 4% CA) and non-scalability blocking growth.

  • Invest 35h to boost productivity x3, stress-free deployments, and an irresistible resume.

Célian Lebacle, Learni trainer · Web & mobile expert
Célian Lebacle

Learni trainer · Web & mobile expert

73%productivity gap
×3cost of inaction
Flag of the United StatesBuilt for US teams
Payment by wire transferEnhanced confidentialityPerfect for companies with 50 to 500 employeesScheduling to fit any time zone

Trusted by — schools, companies and industrial groups

41,181 programs · 25 countries

  • Aptar
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  • Equans
  • EDF
  • Ubisoft
  • Microsoft
  • Atos

Every program built with a dedicated engineer

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Companies: Aptar, ArcelorMittal, Equans, EDF, Ubisoft, Microsoft and Atos.

Flask training objectives

  • Install and configure Flask for a quick start
  • Develop routes and dynamic templates
  • Handle forms and integrate a database
  • Build secure REST APIs
  • Deploy a Flask application to production
  • Apply best practices for scalable apps

Program

Flask curriculum: 5 modules over 5 days

Module 1 : Flask Basics: Installation and First App (Flask CLI, virtualenv)

Discover Flask by installing the environment via pip and virtualenv, create your first hello world application, configure basic routes and dynamic variables, test live with the development server, complete practical exercises to solidify foundations, obtain a deliverable: basic functional app.

Module 2 : Advanced Routing and Templates: Jinja2, Blueprints (Modularity Tools)

Dive into complex routes with parameters and HTTP methods, integrate Jinja2 for dynamic HTML templates, structure your project with blueprints for immediate scalability, code interactive pages through guided exercises, generate conditional views, leave with a ready-to-use multi-page prototype.

Module 3 : Forms and Database: WTForms, SQLAlchemy (ORM Models)

Master secure forms with WTForms and validation, connect Flask to SQLite via SQLAlchemy to persist data, create models and migrations, implement full CRUD on concrete cases like a blog, test user-database interactions, produce a deliverable: app with data management.

Module 4 : REST API and Security: Flask-RESTful, JWT (Authentication)

Build RESTful APIs with JSON endpoints, add JWT authentication to secure access, handle errors and logging, develop a group todo-list API, integrate Postman for testing, validate with real scenarios, obtain a portfolio: functional and secure API.

Module 5 : Deployment and Final Project: Gunicorn, Docker (Best Practices)

Prepare deployment with Gunicorn and Nginx, containerize via Docker for smooth production, optimize performance and debugging, complete a personal capstone project like a dashboard, present and receive expert feedback, leave certified with deployable source code and market-ready skills.

How Flask skills are assessed

  • Daily interactive quizzes, graded practical exercises, final project evaluated by experts, Qualiopi certification.

How the Flask course is taught

  • Active pedagogy with 70% hands-on practice, real business cases, real-time personalized feedback.

Flask training: access and practical arrangements

The Training Flask - Create High-Performance Python Web Apps program is delivered onsite or remote (blended-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.

The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.

Equipment required

For the smooth delivery of the Training Flask - Create High-Performance Python Web Apps program, the following equipment is required:

  • Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
  • Training environments installed on workstations or accessible online
  • Course materials, hands-on exercises and complementary resources
  • Post-training access to materials and educational resources

For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.

* contact us for remote delivery feasibility** ratio varies depending on the program

Skills assessment methods

Assessment of skills acquired during the Training Flask - Create High-Performance Python Web Apps program is performed through:

  • During training: case studies, hands-on labs and professional scenarios
  • End of training: self-assessment questionnaire and skills evaluation by the trainer
  • After training: completion certificate detailing acquired skills

Program accessibility

Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.

Enrollment terms and lead times

Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.

The Learni story

Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.

Our method

How Learni guarantees the quality of your Flask training

Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.

Step 1

Rigorous trainer selection

Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.

  • Triple validation: technical, pedagogical, sectoral.
  • Minimum rating 4.8/5 over the last 12 sessions.
Step 2

You meet the trainer beforehand

30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.

  • Live briefing on goals and team context.
  • Veto right — we swap the trainer for free if needed.
Step 3

Content tailored to your context

No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.

  • Hands-on cases drawn from your stack and projects.
  • Program co-written then validated by your team.
Step 4

Continuous quality follow-up

Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.

  • NPS, knowledge quizzes and skills self-assessment.
  • Satisfaction guarantee: fully satisfied or free rework.

A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

A child walking to school with a backpack
Our social commitment

A school kit donated to a child for every training booked

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.

  • Backpack, notebooks and essential supplies
  • Distributed through our partner charities
  • Included, at no extra cost to you
Enroll and offer a kit
FAQ

Flask: frequently asked questions

Which tools are used in Flask training?+
Hands-on work runs on flask CLI, virtualenv, modularity Tools, ORM Models, authentication and best Practices. Those tools come from the Flask program itself, delivered on site over 5 days, so participants practise on the stack they will use at work.
What can participants do after Flask training?+
They can install and configure Flask for a quick start, develop routes and dynamic templates and handle forms and integrate a database. Those are the stated objectives of the Flask program at Beginner level, checked by the end-of-session assessment.
What does the Flask program cover, day by day?+
Day 1: Flask Basics: Installation and First App (Flask CLI, virtualenv). Day 2: Advanced Routing and Templates: Jinja2, Blueprints (Modularity Tools). Day 3: Forms and Database: WTForms, SQLAlchemy (ORM Models). Day 4: REST API and Security: Flask-RESTful, JWT (Authentication). Day 5: Deployment and Final Project: Gunicorn, Docker (Best Practices). The Flask program runs over 5 days, delivered on site.
How is Flask training assessed?+
Assessment relies on daily interactive quizzes, graded practical exercises, final project evaluated by experts, Qualiopi certification. Learni issues a completion certificate together with the individual assessment report at the end of the Flask program, which an L&D team can file as evidence.
How much does Flask training cost per participant?+
Flask training costs $5,775 per participant. For an in-company team, the flat rate starts at $10,395 for the whole group, up to 8 people. The detailed quote, sent within one business day, adjusts the amount to the format and how far the syllabus is tailored to your team.
How long does Flask training take?+
5 days, available live online (US time zones) or on-site at your offices. Half-day tracks spread over several weeks are possible so the team stays operational.
Who pays for Flask training?+
Most US teams pay directly through their company L&D or training budget. Learni invoices in US dollars and accepts bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.
What do participants need to know before Flask training?+
Basic Python knowledge: variables, functions, lists, loops.
Is a certificate issued after Flask training?+
Yes. A Learni completion certificate is issued, along with the individual evaluation report. Learni is a certified training provider and prepares for third-party certifications, but does not award them itself.
Does Learni provide the equipment for Flask training?+
No. A computer and a stable internet connection are required for each participant. Learni provides the learning platform, the trainer and all course materials.
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