The Flask Mega-Tutorial (Python Web Development) from Udemy

The Flask Mega-Tutorial is an overarching tutorial for Python beginner and intermediate developers that teaches web development with the Flask framework. The tutorial was born as a series of blog articles, and has been thoroughly revised, updated and expanded as a result of a successful Kickstarter campaign. The concepts that are covered go well beyond Flask, including a wide range of topics Python web developers need to know when writing their own applications.

The goal of the course is to build a nicely featured social blogging web application. Chapter 1 begins with a very simple version of this application that has just a few lines of code. Then, each successive chapter adds a new feature to it. The 23 chapters in this course can be roughly split into two parts: the first 12 chapters are focused on basic web development concepts, while the remaining 11 chapters cover intermediate and advanced techniques. All the code featured in this tutorial is open source, and is available on GitHub. You are welcome to use any of it for your own projects.

This edition of the tutorial includes over 11 hours of video showing how to perform all the steps in detail. For added context, the blog articles from where this tutorial originated are available on Miguel Grinberg's blog.

Important Note: The content in this tutorial was created in 2018 and revised in 2021, so you should expect minor issues due to changes in Python, Flask and other dependencies used. The blog version of this tutorial can be used as guidance to resolve problems.

What's inside

Learning objectives

Write complete web applications using python and flask
Accept user input through web forms
Use relational databases
Manage user logins and authentication
Translate and localize application messages

Implement a search engine
Add javascript user-friendly features
Application programming interfaces (apis)
Deploy your application on linux servers or docker containers
Deploy your application on heroku

Write complete web applications using python and flask
Accept user input through web forms
Use relational databases
Manage user logins and authentication
Translate and localize application messages
Implement a search engine
Add javascript user-friendly features
Application programming interfaces (apis)
Deploy your application on linux servers or docker containers
Deploy your application on heroku

Syllabus

Hello, World!

Introduction

Installing Python

Installing Flask

A "Hello World" Flask Application

Templates

What Are Templates?

Conditional Statements

Loops

Template Inheritance

Web Forms

Introduction to Flask-WTF

User Login Form

Form Templates

Form Views

Receiving Form Data

Improving Field Validation

Generating Links

Database

Databases In Flask

Database Migrations

Flask-SQLAlchemy Configuration

Database Models

Creating the Migration Repository

The First Database Migration

Database Upgrade and Downgrade Workflow

Database Relationships

Play Time

Shell Context

User Logins

Password Hashing

Introduction to Flask-Login

Preparing the User Model for Flask-Login

User Loader Function

Logging Users In

Logging Users Out

Requiring Users to Log In

Showing the Logged In User in Templates

User Registration

Profile Page and Avatars

User Profile Page

Avatars

Using Jinja2 Sub-Templates

More Interesting Profiles

Recording The Last Visit Time For a User

Profile Editor

Error Handling

Error Handling in Flask

Debug Mode

Custom Error Pages

Sending Errors by Email

Logging to a File

Fixing the Duplicate Username Bug

Followers

Database Relationships Revisited

Representing Followers

Database Model Representation

Adding and Removing "follows"

Obtaining the Posts from Followed Users

Combining Own and Followed Posts

Unit Testing the User Model

Integrating Followers with the Application

Pagination

Submission of Blog Posts

Displaying Blog Posts

Making It Easier to Find Users to Follow

Pagination of Blog Posts

Page Navigation

Pagination in the User Profile Page

Email Support

Introduction to Flask-Mail

Flask-Mail Usage

A Simple Email Framework

Request a Password Reset

Password Reset Tokens

Sending a Password Reset Email

Resetting a User Password

Asynchronous Emails

Facelift

CSS Frameworks

Introducing Bootstrap

Using Flask-Bootstrap

Rendering Bootstrap Forms

Rendering of Blog Posts

Rendering Pagination Links

Before and After

Dates and Times

Timezone Hell

Timezone Conversions

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Teaches Python and Flask, which are industry standard tools for building web applications

Builds a full-stack social blogging application, which provides a practical approach to understanding web development concepts

Led by Miguel Grinberg, a recognized expert in web development who has written several books on the subject

Covers advanced topics like APIs, deployment on Linux and Docker, and working with JavaScript, providing a comprehensive learning experience

Requires Python and Flask installation, which may be a barrier to entry for beginners who are not familiar with these tools

The course content was created in 2018 and last revised in 2021, so it may not be up-to-date with the latest versions of Python, Flask, and other dependencies

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in The Flask Mega-Tutorial (Python Web Development) with these activities:

Organize your course materials

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Consolidate your notes, assignments, and resources to enhance your understanding and facilitate efficient review of the course materials.

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Gather all the materials you have accumulated throughout the course.
Create a organized system for storing and accessing your materials.
Regularly review your organized materials to reinforce your learning.

Mentor a fellow Flask learner

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Guide and assist another individual in their journey of learning Flask, reinforcing your understanding and developing leadership skills.

Browse courses on Mentoring

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Identify someone who is new to Flask and is seeking guidance.
Offer your support and share your knowledge and experiences.
Provide feedback and encouragement to help the learner progress.

Revise your Python basics

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Begin by refreshing the basic concepts of Python to ensure a strong foundation before diving into Flask.

Browse courses on Python Basics

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Review Python data types, variables, and operators.
Practice writing simple Python functions.
Create a small Python program using loops and conditional statements.

One other activity

Expand to see all activities and additional details

Show all four activities

Read the Flask Mega-Tutorial

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Review the official Flask Mega-Tutorial to reinforce your understanding of Flask concepts and best practices, expanding on the knowledge gained in this course.

View The Flask Mega-Tutorial on Amazon

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Download and read through the Flask Mega-Tutorial.
Experiment with the code examples provided in the tutorial.
Refer to the tutorial as needed to clarify concepts or find solutions.

Career center

Learners who complete The Flask Mega-Tutorial (Python Web Development) will develop knowledge and skills that may be useful to these careers:

Web Developer

Web Developers create and maintain websites and web applications. They work with both the front-end (the part of the website that users see and interact with) and the back-end (the part of the website that stores and processes data). This course can help you get started in web development by teaching you the basics of Flask, a Python framework for web development. You'll learn how to create web pages, handle user input, and connect to databases. This knowledge can help you build a foundation for a career as a Web Developer.

See salaries and explore the career path for Web Developer

Software Engineer

Software Engineers design, develop, and maintain software systems. They work on a wide variety of projects, from small personal applications to large enterprise systems. This course can help you build a strong foundation in Python, a popular programming language used by Software Engineers. You'll learn about object-oriented programming, data structures, and algorithms. This knowledge can help you prepare for a career as a Software Engineer.

See salaries and explore the career path for Software Engineer

Data Scientist

Data Scientists use data to solve business problems. They collect, clean, and analyze data to identify trends and patterns. This course can help you develop the skills needed to become a Data Scientist. You'll learn how to use Python to work with data, perform statistical analysis, and create data visualizations. This knowledge can help you build a strong foundation for a career as a Data Scientist.

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Machine Learning Engineer

Machine Learning Engineers design, develop, and maintain machine learning models. They work on a wide variety of projects, from building self-driving cars to recommending products to customers. This course can help you build a strong foundation in Python, a popular programming language used by Machine Learning Engineers. You'll learn about object-oriented programming, data structures, and algorithms. This knowledge can help you prepare for a career as a Machine Learning Engineer.

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Product Manager

Product Managers are responsible for the development and launch of new products. They work with engineers, designers, and marketers to bring products to market. This course can help you develop the skills needed to become a Product Manager. You'll learn about product development, user experience, and marketing. This knowledge can help you build a strong foundation for a career as a Product Manager.

See salaries and explore the career path for Product Manager

Business Analyst

Business Analysts analyze business processes and identify opportunities for improvement. They work with stakeholders to gather requirements, develop solutions, and implement changes. This course can help you develop the skills needed to become a Business Analyst. You'll learn about business process modeling, data analysis, and project management. This knowledge can help you build a strong foundation for a career as a Business Analyst.

See salaries and explore the career path for Business Analyst

Data Analyst

Data Analysts collect, clean, and analyze data to identify trends and patterns. They work with stakeholders to communicate insights and make recommendations. This course can help you develop the skills needed to become a Data Analyst. You'll learn about data analysis, data visualization, and statistical modeling. This knowledge can help you build a strong foundation for a career as a Data Analyst.

See salaries and explore the career path for Data Analyst

Web Designer

Web Designers create the visual appearance of websites and web applications. They work with developers to ensure that websites are both visually appealing and functional. This course can help you develop the skills needed to become a Web Designer. You'll learn about web design principles, user experience, and graphic design. This knowledge can help you build a strong foundation for a career as a Web Designer.

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Database Administrator

Database Administrators are responsible for the management and maintenance of databases. They work with a variety of databases, from small personal databases to large enterprise databases. This course can help you develop the skills needed to become a Database Administrator. You'll learn about database design, data storage, and data security. This knowledge can help you build a strong foundation for a career as a Database Administrator.

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IT Manager

IT Managers are responsible for the planning, implementation, and maintenance of IT systems. They work with a variety of stakeholders, including users, developers, and vendors. This course can help you develop the skills needed to become an IT Manager. You'll learn about IT management principles, project management, and budgeting.

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UX Designer

UX Designers create the look and feel of digital products. They work with engineers and designers to create products that are both visually appealing and user-friendly. This course can help you develop the skills needed to become a UX Designer. You'll learn about user experience principles, design thinking, and prototyping. This knowledge can help you build a strong foundation for a career as a UX Designer.

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Cloud Engineer

Cloud Engineers design, build, and maintain cloud computing systems. They work with a variety of cloud platforms, from Amazon Web Services to Microsoft Azure. This course can help you develop the skills needed to become a Cloud Engineer. You'll learn about cloud computing principles, cloud architecture, and cloud security. This knowledge can help you build a strong foundation for a career as a Cloud Engineer.

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Software Architect

Software Architects design and implement software systems. They work with a variety of stakeholders, including users, developers, and management. This course can help you develop the skills needed to become a Software Architect. You'll learn about software architecture principles, design patterns, and software development methodologies.

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Technical Writer

Technical Writers create documentation for technical products. They work with engineers and developers to create user manuals, training materials, and other technical documents. This course can help you develop the skills needed to become a Technical Writer. You'll learn about technical writing principles, documentation tools, and user experience.

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Project Manager

Project Managers plan, implement, and manage projects. They work with a variety of stakeholders, including project team members, clients, and sponsors. This course may help you develop some of the skills needed to become a Project Manager. You'll learn about project management principles, project planning, and project execution.

See salaries and explore the career path for Project Manager