Django vs Flask is one of the most popular questions among computer science students who want to learn web development. There are several Python-based web frameworks that make the development of scalable apps easier. These frameworks can build everything from simple to advanced websites.
Out of several web framework choices, Django and Flask are two of the most popular Python web frameworks, and want to know their difference owing to the fact that they are similar in some aspects while being very distinct in others!
So, today we will discuss the most important differences between Django and Flask. But, discussing Django vs Flask, let’s have a loot the basic introduction of both these frameworks.
What Is Django?
Django is a Python-based web development framework that helps create and maintain high-quality websites. It’s a free, high-level, open-source web framework that follows the MTV architectural pattern. Django’s main purpose is to build complex, database-driven websites easily.
Features Of Django
Django vs Flask- If you want to choose one between these, you should know the features of both these frameworks. So, here is the list of the various features of Django.
- Django provides high scalability. It is an ideal choice for someone who wants to make his website scalable for a bigger environment.
- It comes with excellent documentation.
- It gives a ready-to-use user interface for administrative tasks.
- Its built-in internationalization system enables multilingual web pages.
- Django facilitates end-to-end application testing.
- Help in API documentation with an HTML output
- Policies on permissions and throttling
- It’s commonly used to limit the number of API queries a single user makes.
What Is Flask?
Flask is a micro web framework and a Python module that makes it simple to create web applications. Flask was built as an April Fool’s joke in 2004 by a developer named Armin Ronacher. It is called microframework because it does not necessitate the usage of any specific library or tool. It doesn’t have a database abstraction layer, form validation, or other components that rely on third-party libraries to do typical tasks.
However, extensions can be used to add application functionalities as if they were built into Flask itself. Flask is based on the Jinja2 template and engine Werkzeg WSGI toolkit, and both are Pocco initiatives.
Features Of Flask
Here is the list of various features of Flask
- Provides a fast debugger and built-in development server
- Secure cookies are supported
- Templating in Jinja2
- RESTful request dispatching
- Based on Unicode
- Compliant with WSGI 1.0
- Comprehensive documentation
- Extensions supported for feature enhancement
- Compatibility Of Google App Engine
Django vs Flask- The Main Differences
The following is the list of Django vs Flask- all the essential differences.
Django comes with an ORM (Object Relational Mapping) that supports a variety of relational databases out of the box, including SQLite, MySQL, PostgreSQL, and Oracle. It’s also simple to build views, forms, and email templates based on the data models, ideal for a CRUD web application. However, for a non-relational database or different ORM like SQLAlchemy, Django is not an ideal choice.
Flask doesn’t make any assumptions about how data is saved, but several available libraries and extensions can help. Flask allows developers to pick and select the ORM (or ODM) suitable for their application. However, there is a cost to freedom: There’s a steeper learning curve and a greater chance for error because you’re handling these elements manually.
Django comes with AUTH functionality, account management, and session support (via the User model) out of the box.
However, cookie-based sessions are supported by Flask, but account management, authentication, and authorization must be handled through the extension network.
It is one of the important differences in Django vs Flask. Django includes a fully complete admin panel, a web application that allows you to manage data based on your models. So, Django excels in this area as well. It enables you to quickly perform CRUD actions on your models while developing an application without having to write any additional code.
Again, Flask does not come with anything like this out of the box, but the Flask-Admin extension adds all of this and more. Peewee, SQLAlchemy, and MongoEngine are just some of the database backends supported by Flask-Admin. You can also add your own backends. It can be used with or without the widely used Flask authentication extensions.
Routing and Views
Both frameworks enable class and function-based views and allow you to map URLs to views.
When a request matches a URL pattern in Django, the request object, which contains the HTTP request data, is sent to a view, which is then called. You must explicitly pass the request object around whenever you need it. views.py and urls.py are two independent files that define Views, and URLs respectively.
Werkzeug, which provides URL routing and request/response handling, is used at its core by Flask. In Flask, the request object is global, making it much easier to access. URLs are defined with the view in most cases, although they can be separated into a centralized location, similar to the Django pattern.
Forms is another important aspect to consider in Django vs Flask. Django includes forms, which are an important feature of most web applications. It comprises client and server-side validation, input handling, and security issues handling such as cross-site scripting (XSS), cross-site request forgery (CSRF), and SQL injection. They can be built using data models through ModelForms and work well with the admin panel.
By default, Flask does not support forms. However, the Flask-WTF extension connects Flask with WTForms. WTForms-Alchemy, like Django’s ModelForm, may be used to automatically construct forms based on SQLAlchemy models, bridging the gap between the ORM and forms.
In terms of project structure, as your projects become more complex, both frameworks make it simple to divide them up by grouping related files with similar functionality together. For instance, all user-related functionality, such as views, routes, forms, static assets, and templates, could be grouped.
Django provides a concept of the app, whereas Flask provides blueprints. Django apps are more complicated than Flask blueprints, but they’re easier to work with and reuse once they’ve been set up. Moreover, you can easily add new developers to a Django project with the help of urls.py, models.py, and views.py conventions (a consistent project structure). Blueprints, on the other hand, are simpler and quicker to implement.
With the release of Django 3.1, asynchronous handlers are now supported by Django. In contrast, asynchronous request handlers are not supported by Flask. In Django, the keyword async is used to make a view asynchronous. Middlewares can also take advantage of async support. The sync to async function/decorator is used to make a synchronous call within the async view. This can be used to interface with portions of Django like the caching layer and ORM that don’t yet support async.
To fully utilize the potential of asynchronous views, asynchronous web servers such as Daphne, Hypercorn, and Uvicorn should be used.
Django vs Flask Popularity
Below is the graph of Google search trends for the terms Django and Flask. As clearly depicted, Django is more popular than Flask over the google search of 2016-2021. So, if we consider Django vs Flask in terms of popularity, Django is the clear winner.
Django vs Flask: Head To Head Comparisons
|Type||Full-stack web framework||micro web framework|
|API Support||Doesn’t have APIs support||Provides API support|
|Dynamic HTML pages||Supported||Not-supported|
|Flexibility||Low flexibility||High flexibility|
|Learning||High learning curve||Easier to learn|
|Development||Less control over the components||More control over the components|
|Admin||Comes with admin panel||Does not come with admin panel but provide extension Flask-Admin|
|Template Engine||Built-in template engine||Based on Jinja2 template design|
|URL Dispatcher||Based on controller-regex||It is a RESTful request|
|Suitable For||Multiple page application||Single page application|
|Structure Of Project Layout||Conventional||Random|
Both Django and Flasks have several different features that are good over the other. Therefore, choosing one winner in the battle of Django vs Flask is difficult. So, it primarily depends on your requirements to decide which among Flask vs. Django best serve your purpose. Hopefully, this blog has helped you to understand every difference between Django and Flask.
Frequently Asked Questions
Is Django or flask easier?
Flask is easier to learn in comparison to Django. Flask is lighter than Django, and for a beginner in web development, Flask is much easier than Django because it feels quite similar to working with vanilla Python to design request handlers, views, and other things.
Should I learn Flask after Django?
Flask can be a better choice because it enables you to get started quickly and completely grasp your application as it is very lightweight. However, Django enables the developers to build web applications without needing any external input. So, which you should learn depends upon your choices.