Python is one of today’s most often used programming languages. Thanks to this popularity, developers and programmers have many tools and resources at their disposal. Today we cover two of the most popular Python frameworks: Flask vs Django.

We’ll start with a Python overview, then look at each web framework, including its uses. Then we will get into the heart of the matter, the comparisons between Flask and Django, highlighting both the differences and similarities.

This information is valuable if you’re a Python developer (or want to become one eventually) since frameworks are such a standard part of website and app creation. The knowledge you gain here can also give you some extra help with Python interview questions if you’re applying for a web developer position.

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Also, suppose you plan to apply for a Python programmer position, and you know the organization uses the Python Django web framework. In that case, you can brush up with these Django interview questions.

So let’s start the festivities with a refresher on Python itself.

A Brief Python Overview

Here is how the Python Software Foundation, the organization behind Python, sums up the language: “…an interpreted, object-oriented, high-level programming language with dynamic semantics. Its high-level built-in data structures, combined with dynamic typing and dynamic binding, make it very attractive for Rapid Application Development, as well as for use as a scripting or glue language to connect existing components together.”

Python was the second most popular programming language by the conclusion of 2020, taking Java’s place but still lagging behind C. Python appeals to beginning and veteran programmers, as well as non-programmers. Python is the language preferred by many data scientists, web developers, and software programmers, thanks to its easy-to-use syntax and versatility as a general-purpose programming language.

Why Frameworks Matter

Inevitably, you will encounter many tedious and repetitive tasks when working on Python projects like building a web application. These tasks include building back-end logic, designing a user interface, and hooking the app up to the internet so it interacts with a browser better. Web frameworks are designed to implement the functionalities commonly found in web applications, such as mapping URLs to Python code pieces.

But each framework offers different benefits. Let’s explore Flask vs Django.

What is Flask?

Released in 2010, Flask is a web application micro- (or lightweight) framework. It doesn’t depend on external libraries, though it has extensions such as object-relational mappers, open authentication systems, form validations, uploading mechanisms, and other tools.

Flask’s primary characteristics include:

  • Integrated support for unit testing
  • Development server and rapid debugger
  • Jinja2 template engine
  • Werkzeug, which provides robust web server gateway interface (WSGI) support, and Jinja2, which offers a powerful web template engine
  • Support for secure cookies in client-side sessions
  • Extensive documentation
  • Google app engine compatibility
  • Clear and neat APIs
  • Simple production deployment
  • Under 10,000 source lines of code

What is Django?

Released in 20025, Django is a full-stack, high-level, and heavyweight web development framework often characterized with a “batteries included” system approach. The “batteries included” characteristic makes it easy for Django designers to jump in and start working with it right away, rather than having to configure the framework ahead of time.

Django gives developers an all-inclusive experience out of the box, including an administrative panel, database interfaces, object-relational mapping, and a directory structure for apps. It's ideal for developers who want to create web applications faster and with less time spent coding.

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Django’s noteworthy features include:

  • Model-View-Controller (MVC) architecture
  • Predefined libraries for graphics, imaging, scientific calculations, etc.
  • Support for multiple databases
  • Compatibility with any client-side framework
  • Cross-platform operating system
  • It can be used with any website type, using content in any format like HTML, XML, JSON, etc.
  • Site optimization across specialized servers
  • Support for front-end tools such as Ajax, Pyjamas, jQuery, etc.
  • Multi-language and multi-character support
  • It has about 24,000 source lines of code

What is Flask Used For?

Since Flask is an easy, no-frills framework, it's great for developers who want to develop small to medium web applications quickly. If a developer wants flexibility, simplicity, and fine-grained control, they turn to Flask.

You should learn Flask if you're more interested in the development experience and learning opportunities or if you’d like more control of which components you use, such as the kinds of databases and how you interact with them.

Companies and organizations that use Flask include Lyft, MIT, Netflix, and Reddit.

What is Django Used For?

Django is used to create complex, database-driven websites while freeing up the designer from the more tedious aspects of development and coding. If a developer wants a way to develop websites quickly and effectively, they choose Django.

You should learn Django if you're focused more on the final product, especially if it’s a straight-forward application like an e-store, blog, or news site. You can use Django for smaller projects instead of turning to Flask, but it’s a case of overkill.

Companies and organizations that use Django include Pinterest, Instagram, and Accenture.

Flask vs Django- Similarities

Both Flask and Django are open-source web frameworks used for Python. Both have well-established, mature use communities, are popular and widely supported, and offer developers a way to increase their programming productivity.

And the only way you can use either of these frameworks is to learn Python, of course.

Flask vs Django - Differences

Now we get to the heart of the matter: how do these frameworks differ? Perhaps the best way to compare and illustrate the differences is with a handy chart.

Flask vs Django



Python Framework Type

Simple, lightweight, minimalist Python web framework

Full-stack Python web framework based on batteries-included approach

Admin Framework

No tools to handle administration tasks

Contains a ready-to-use admin framework — a boot-strapping tool that lets developers build web apps without external input


Relies on Jinja2

Has a time-saving template engine

Best Used For

Simple applications that don’t need much coding and can be built easily

Larger projects that require more functionality


Requires fewer lines of code

Requires more than twice the number lines of code as Flask

Learning Curve

Easy to learn

High learning curve

Best Practices

Since it’s more open-ended, developers won’t necessarily follow best practices

Since everything has a template, Django ensures that developers will follow best practices


High scalability with simple applications, flexible

Not suited for dynamic changes and scalability and not as flexible


Doesn’t support ORM frameworks, so developers must type in SQLAlchemy (Protest Social Mapper and SQL toolkit for Python) to perform common database operations

Supports ORM frameworks so developers work with many databases, like PostgreSQL, SQLite, Prophet, MySQL, etc. Developers don’t need long SQL inquiries to execute everyday database operations.

In summary, Flask and Django are both Python-based web and app development frameworks. Flask is a lightweight framework suited for smaller projects and allows for a more “seat of the pants” approach. At the same time, Django is a monolith that gives developers everything they need to tackle the big, high-functionality projects.

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Are You Interested in Becoming a Python Programmer?

According to Stack Overflow’s developer survey, Python has been one of the most in-demand technologies since 2018 and ranks as the second most popular programming language among software developers.

If you’re interested in becoming a Python programmer, Simplilearn has the resources to help on your way. Simplilearn’s Python course covers the fundamentals of Python and how to apply it to real-world applications. The modules, lesson-end projects, and assignments comprising the curriculum cover data operations in Python, strings, conditional statements, error handling, shell scripting, web scraping, and the commonly used Python web framework, Django.

Once you complete the course, you gain certification in an essential skill for success in today’s IT world. Many IT-related careers rely on a solid knowledge of different programming languages, which is why it’s a smart idea to learn Python for Data Science, for example.

Python developers in the United States can earn an annual average salary of USD 110,447, according to Indeed. The site further points out that in India, the average Python developer salary averages around ₹566,019.

But wait, there’s more! Simplilearn also offers a Data Science with Python course. The course teaches you to master the concepts of Python programming. Through this, you will gain knowledge in data analysis, machine learning, data visualization, web scraping, and natural language processing. When you successfully complete the course, you will have mastered the essential tools of Data Science with Python.

So whether you’re an experienced programmer looking for a way to upskill or someone who’s looking for a career that’s fun, in-demand, and pays well, Simplilearn has the means of boosting your career path. Check it out today, and program yourself into a better future!

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