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Flask vs Hug: What are the differences?

Key Differences between Flask and Hug

Flask and Hug are two popular frameworks used for building web applications in Python. While they both serve similar purposes, there are key differences that set them apart.

  1. Routing: Flask uses a decorator-based approach for routing, where specific functions are mapped to specific URLs. On the other hand, Hug uses explicit syntax for routing, allowing developers to define routes using Pythonic syntax with more control and flexibility.

  2. Performance: Hug is designed to be highly performant, with built-in optimizations that make it faster than Flask in certain scenarios. Hug achieves this by utilizing a compiled version of code and leveraging Cython for speed. Flask, on the other hand, does not have these performance optimizations by default.

  3. API Generation: Hug's main focus is on building APIs, and it provides a straightforward way to generate API documentation automatically. It includes features like automatic serialization of responses and clean error handling. Flask, on the other hand, is a more general-purpose framework and does not have these built-in features specifically tailored for API development.

  4. Scalability: Flask is a lightweight framework that allows developers to cherry-pick the components they need for their applications. This flexibility makes it easier to build small to medium-sized applications. Hug, on the other hand, is built with scalability in mind, making it suitable for larger applications that require high performance and extensive APIs.

  5. Community and Ecosystem: Flask has a larger and more mature community and ecosystem compared to Hug. It has been around for a longer time and has a wider range of third-party libraries and extensions available. This means that Flask users have access to a larger pool of resources, tutorials, and community support. Hug, being a relatively newer framework, has a smaller community and ecosystem in comparison.

  6. Learning Curve: Flask is known for its simplicity and ease of use, making it a great choice for beginners or those who prefer a minimalistic approach. Hug, on the other hand, has a steeper learning curve due to its more advanced features and explicit syntax. It may require more time and effort to grasp the full capabilities of Hug compared to Flask.

In summary, Flask and Hug are both capable frameworks for building web applications in Python, but they differ in terms of routing approach, performance, API generation features, scalability, community and ecosystem size, and learning curve. Choose Flask for simplicity and ease of use, or opt for Hug for high performance, advanced API features, and scalability.

Advice on Flask and Hug
Muhammad Waleed
The Community Management · | 3 upvotes · 138K views
Needs advice
on
Django REST frameworkDjango REST framework
and
FlaskFlask

Hey! So I am planning to make an e-commerce website with React Native as my frontend technology stack and MongoDB as my database. I was wondering what will be the best REST framework to use for my backend that will simply serve the frontend. Is Django rest framework a good option or should I go with Flask? I am currently leaning towards flask as the development team is well versed in it. Please help!

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Replies (2)
Preeti Yuankrathok
Software Consultant at CODIUM · | 2 upvotes · 63.6K views

If the application is simple such as less endpoint or simple logic, I'd suggest Flask. But what you're building is quite a large system that contains many logics and a lot of models. So I'd suggest you with Django and Django REST framework. Django ORM is also one of the best ORM in the world as well.

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Mayur Borse
Software Engineer at hyphenOs · | 2 upvotes · 67.1K views
Recommends
on
FastAPIFastAPIfastapifastapi

FastAPI is modern microframework. If you haven't used any of them, I'd suggest FastAPI. Django REST is also good if you have previous experience with it.

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kristan-dev
Senior Solutions Analyst · | 8 upvotes · 345K views

My journey to developing REST APIs started with Flask Restful, and I've found it to be enough for the needs of my project back then. Now that I've started investing more time on personal projects, I've yet to decide if I should move to use Django for writing REST APIs. I often see job posts looking for Python+Django developers, but it's usually for full-stack developers. I'm primarily interested in Data Engineering, so most of my web projects are back end.

Should I continue with what I know (Flask) or move on to Django?

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Replies (1)
Rafael Torres
Technical Lead at 4Agile · | 9 upvotes · 335.5K views

If you want to be a Web developer with knowledge in another frontend and NoSql technology, maybe continue with Flask. However, if you want to create very fast solutions to grow up with a new business and merge these with data analysis and other tools, Django is the answer. Basically read more about the service architecture where you feel more comfortable, Microservice or Monolithic, but please will not married with any because they solve issues to different contexts.

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Girish Sharma
Software Engineer at FireVisor Systems · | 6 upvotes · 273.4K views
Needs advice
on
BottleBottleFlaskFlask
and
NamekoNameko

Which is the best Python framework for microservices?

We are using Nameko for building microservices in Python. The things we really like are dependency injection and the ease with which one can expose endpoints via RPC over RabbitMQ. We are planning to try a tool that helps us write polyglot microservices and nameko is not super compatible with it. Also, we are a bit worried about the not so good community support from nameko and looking for a python alternate to write microservices.

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Replies (1)
Recommends
on
BottleBottle

Bottle is much less bloated and fast. Its built-in templating system is one of the fastest as it compiles the templates in bytecode. Also Bottle has no depenencies, preventing dependency bloat.

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Saurav Pandit
Application Devloper at Bny Mellon · | 6 upvotes · 290.3K views

I have just started learning Python 3 weeks ago. I want to create a REST API using python. The API will be used to save form data in an Oracle database. The front end is using AngularJS 8 with Angular Material. In python, there are so many frameworks to develop REST APIs.

I am looking for some suggestions which REST framework to choose?

Here are some features I am looking for:

  • Easy integration and unit testing, like in Angular. We just want to run a command.

  • Code packaging, like in java maven project we can build and package. I am looking for something which I can push in as an artifact and deploy whole code as a package.

  • Support for swagger/ OpenAPI

  • Support for JSON Web Token

  • Support for test case coverage report

Framework can have features included or can be available by extension. Also, you can suggest a framework other than the ones I have mentioned.

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Replies (1)
Recommends
on
FlaskFlask
at

For starters flask provides a beautiful and easy way to create REST APIs. Also its supported by excellent beginner docs as well as a very active community. Another good thing with Flask is its widely available list of plugins which allow you to build as you go. Its also good in performance and can scale to a quite decent level. However, if you are sure your project is going to be fairly big, it would be better to start with Django as it provides a lot of features out of the box and is extremely stable in performance. Both these frameworks have support for Swagger, JWT, Coverage Report although you have to install plugins for them. Deploying both of these are fairly simple and there is huge documentation available. Django has one of the best documentations I have come across. I hope I was able to answer your queries.

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Decisions about Flask and Hug

We decided to expose our small machine learning (ML) pipeline as a REST API. This allows us to nicely separate concerns from the rest of the codebase. There are two very popular choices in Python for building APIs: Flask and FastAPI. We have experience with both, but find that FastAPIs use of static type hints and validation with Pydantic allow us to build better APIs faster.

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Pros of Flask
Pros of Hug
  • 14
    Flexibilty
  • 10
    For it flexibility
  • 9
    Flexibilty and easy to use
  • 8
    Flask
  • 7
    User friendly
  • 6
    Secured
  • 5
    Unopinionated
  • 3
    Orm
  • 2
    Secure
  • 1
    Beautiful code
  • 1
    Easy to get started
  • 1
    Easy to develop and maintain applications
  • 1
    Not JS
  • 1
    Easy to use
  • 1
    Documentation
  • 1
    Python
  • 1
    Minimal
  • 1
    Lightweight
  • 1
    Easy to setup and get it going
  • 1
    Perfect for small to large projects with superb docs.
  • 1
    Easy to integrate
  • 1
    Speed
  • 1
    Get started quickly
  • 1
    Customizable
  • 1
    Simple to use
  • 1
    Powerful
  • 1
    Rapid development
  • 0
    Open source
  • 0
    Well designed
  • 0
    Productive
  • 0
    Awesome
  • 0
    Expressive
  • 0
    Love it
  • 4
    Simple
  • 2
    Self documenting
  • 2
    REST
  • 2
    Fast
  • 2
    Elegant

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Cons of Flask
Cons of Hug
  • 10
    Not JS
  • 7
    Context
  • 5
    Not fast
  • 1
    Don't has many module as in spring
    Be the first to leave a con

    Sign up to add or upvote consMake informed product decisions

    What is Flask?

    Flask is intended for getting started very quickly and was developed with best intentions in mind.

    What is Hug?

    Hug aims to make developing Python driven APIs as simple as possible, but no simpler. As a result, it drastically simplifies Python API development.

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    What are some alternatives to Flask and Hug?
    Django
    Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design.
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    By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user.
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    Express is a minimal and flexible node.js web application framework, providing a robust set of features for building single and multi-page, and hybrid web applications.
    Node.js
    Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.
    React
    Lots of people use React as the V in MVC. Since React makes no assumptions about the rest of your technology stack, it's easy to try it out on a small feature in an existing project.
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