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FastAPI VS web2py

Compare FastAPI VS web2py and see what are their differences

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FastAPI logo FastAPI

FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.

web2py logo web2py

Web2py is an open source web application framework.
  • FastAPI Landing page
    Landing page //
    2023-05-14
  • web2py Landing page
    Landing page //
    2018-09-30

FastAPI features and specs

  • High Performance
    Built on Starlette and Pydantic, FastAPI is one of the fastest frameworks for Python, providing high performance due to its asynchronous request handling.
  • Automatic Interactive API Documentation
    FastAPI automatically generates interactive API documentation via Swagger UI and ReDoc, which are very helpful for development and testing.
  • Type Checking and Validation
    With Pydantic models and Python type hints, FastAPI provides automatic data validation and type checking, reducing the chance of runtime errors.
  • Ease of Use
    Its syntax and design make it easy to learn for Python developers, offering a smooth development experience while reducing boilerplate code.
  • Asynchronous Support
    FastAPI supports asynchronous programming, allowing for better performance for I/O-bound operations, making it optimal for handling many simultaneous connections.
  • Extensive Documentation
    It has comprehensive and well-structured documentation, which is very useful for both beginners and advanced users.
  • Community and Ecosystem
    FastAPI has a growing community and ecosystem, with many plugins and integrations available to extend its functionality.

Possible disadvantages of FastAPI

  • Learning Curve for Asynchronous Programming
    Although FastAPI itself is easy to learn, grasping the concepts of asynchronous programming in Python can be challenging for beginners.
  • Complex Dependencies
    Using Pydantic for advanced validation can make the request models complex, requiring a deeper understanding of Pydantic and its functionalities.
  • Early Stage Libraries
    Some third-party libraries and extensions specifically tailored for FastAPI might still be in early stages of development and lack long-term stability.
  • Limited Real-World Examples
    Although the documentation is extensive, there might be limited real-world examples and case studies readily available compared to more mature frameworks.
  • Deployment Complexity
    Deploying FastAPI applications might be more complex in comparison to traditional synchronous frameworks, mainly due to the need for asynchronous server setups.

web2py features and specs

  • Ease of Use
    web2py provides a user-friendly web-based interface and requires no installation, making it easy even for beginners to use. It also includes a web-based IDE and administrative interface.
  • Security
    It comes with built-in security features like XSS, CSRF, and SQL Injection protection by default, ensuring safer web applications out of the box.
  • No Configuration Required
    web2py runs with zero configuration, allowing developers to start coding immediately without worrying about initial setup.
  • Cross-Platform Compatibility
    web2py can run on any system that supports Python, providing cross-platform compatibility including Windows, macOS, and Linux.
  • Full-Stack Framework
    As a full-stack framework, web2py includes everything needed to build a web application, from the database to the web server and the front-end interface.
  • Real-Time Error Logging
    The framework offers real-time error logging which aids in easy troubleshooting and debugging during development.
  • Internationalization Support
    Built-in support for internationalization and localization, making it easier to develop applications for a global audience.
  • Active Community and Documentation
    web2py has a strong community and extensive documentation which greatly aids in quick issue resolution and learning the framework.

Possible disadvantages of web2py

  • Less Popular
    web2py is not as popular as other modern frameworks like Django or Flask, leading to fewer third-party plugins, extensions, and community support.
  • Performance
    While web2py is designed for productivity and ease of use, it may not offer the same level of performance optimizations that some other frameworks provide.
  • Lack of Asynchronous Support
    web2py does not natively support asynchronous request handling, which can be a limitation for applications requiring real-time capabilities.
  • Learning Curve
    Despite being beginner-friendly, the framework's custom syntax and paradigms might still present a learning curve for developers used to other frameworks.
  • Monolithic Design
    The monolithic nature of web2py can make it less flexible compared to micro-frameworks like Flask, especially for developers who prefer a modular approach.
  • Limited Ecosystem
    Due to its lower popularity, the ecosystem for third-party libraries, plugins, and tools is relatively limited compared to more widely adopted frameworks.
  • Not Ideal for Large Projects
    web2py is often considered ideal for simple to moderately complex applications but may not be suitable for very large or highly specialized projects.

Analysis of FastAPI

Overall verdict

  • FastAPI is widely regarded as a good choice, especially for applications that require high performance, scalability, and modern Python features. It is suitable for both simple and complex projects, making it a versatile tool in the web development ecosystem.

Why this product is good

  • FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.7+ based on standard Python type hints. It is built on top of Starlette for web framework capabilities and Pydantic for data validation and settings management. FastAPI is known for its excellent performance, automatic generation of interactive API documentation (with Swagger and Redoc), and support for asynchronous programming. Developers appreciate its ease of use, detailed documentation, and helpful error messages.

Recommended for

  • Developers building RESTful APIs
  • Teams looking for a high-performance ASGI-based web framework
  • Projects that require asynchronous programming capabilities
  • Applications needing automatic generation of interactive API documentation
  • Python developers who prefer utilizing type hints for code clarity and validation

FastAPI videos

FastAPI from the ground up

More videos:

  • Tutorial - 30 Days of Python - Day 14 - Web App with Flask, FastAPI, ngrok, and Invictify - Python TUTORIAL
  • Review - [PT] Python - API com FastAPI - Chat | twitch.tv/codeshow

web2py videos

Web development with Python and web2py Part1

More videos:

  • Review - Full Stack Web Development with Python WEB2PY
  • Review - Web2py & Py4web

Category Popularity

0-100% (relative to FastAPI and web2py)
Developer Tools
100 100%
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Web Servers
0 0%
100% 100
API Tools
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Web And Application Servers

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare FastAPI and web2py

FastAPI Reviews

  1. Kurslog team
    ยท Working at Kurslog ยท

    When our backend team needs to build services for data parsing, aggregators, or high-load APIs, FastAPI is our absolute go-to choice. It completely lives up to its name-development speed is outstanding.

    The combination of Pydantic for data validation and built-in async support keeps our shared codebase clean, strictly typed, and reliable. But the biggest highlight for our cross-functional team is the automatic generation of interactive OpenAPI (Swagger) documentation. Our frontend and mobile developers no longer have to wait for backend engineers to manually update API docs; everything stays perfectly in sync automatically. It has drastically improved our team's communication and delivery speed.

    ๐Ÿ Competitors: Django, Flask, ExpressJS, Nest.js, Spring Boot
    ๐Ÿ‘ Pros:    Blazing fast performance (on par with nodejs and go)|Native asynchronous support out of the box|Automatic, interactive documentation generation (swagger/redoc)|Strict typing and data validation with pydantic
    ๐Ÿ‘Ž Cons:    Smaller plug-and-play ecosystem compared to older frameworks like django|Requires our architects to design the project structure and directory layout from scratch

The 20 Best Laravel Alternatives for Web Development
FastAPI, as the name hints, is a swift mover. Built on Starlette, itโ€™s all about speed and performance with Python. Crafting API masterpieces at the speed of light, now thatโ€™s something.
25 Python Frameworks to Master
Since its release in 2018, it has rapidly gained popularity due to its great performance and simplicity. In fact, according to PyPi Stats, FastAPI has over 9 million monthly downloads, surpassing even full-stack frameworks like Django.
Source: kinsta.com
3 Web Frameworks to Use With Python
myapp/ is the main directory of your FastAPI application. It includes all the other files and directories needed for the application.static/ is a directory used to store static assets such as CSS, JavaScript, and image files. These assets are served directly by the web server and are typically used to add visual styling and interactivity to the application.css/, img/, js/...
Best Alternatives to FastAPI App Free for Windows (2021)
FastAPI Alternative โ€“ So many alternatives app to FastAPI that you must to know out there. And, looking for an ideal software was not easy matter. Lucky you, at this page you can find the best replacement app for FastAPI. So what you are waiting for, get the latest FastAPI alternative app for Windows 10 from this page.
Top 5 Back-End Frameworks to Consider for Web Development in 2021
FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints. It is fast when compared to other major Python frameworks like Flask and Django. FastAPI gives great flexibility to fulfill businessesโ€™ API needs in todayโ€™s evolving world.

web2py Reviews

  1. Yeral Garcia Mayedo
    ยท Student at University of Camagรผey ยท
    Best framework for newbies

    It's a framework to rapid development with a nice DAL to connect to the databases. great for me. Just less than 20mb to download and you have all you need to do develop offline.

Social recommendations and mentions

Based on our record, FastAPI seems to be a lot more popular than web2py. While we know about 312 links to FastAPI, we've tracked only 1 mention of web2py. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

FastAPI mentions (312)

  • I Built My First Machine Learning API โ€” Here's Everything I Learned
    I used FastAPI, a Python framework built specifically for creating APIs quickly, with automatic validation and interactive documentation baked in. - Source: dev.to / 1 day ago
  • Shipping Sovereign SDK: Cryptographic Forensic Receipts and the End of the AI "Prose Tax"
    The Sovereign SDK is a Python-native framework designed to minimize prose overhead while generating ironclad, cryptographic execution receipts for AI agents, complete with drop-in FastAPI/Starlette ASGI middleware. - Source: dev.to / 3 months ago
  • 5-Minute AI Jobs and Closed Tabs โ€” Why We Built Replay-Then-Tail SSE
    We had a feature in production where a single user request could run for five-plus minutes โ€” fetch documents, chunk them, hit an LLM per chunk, synthesize a final answer. We did the obvious thing first: a FastAPI handler that ran the pipeline and streamed progress back to the browser over Server-Sent Events. - Source: dev.to / 4 months ago
  • FastAPI With LangChain and MongoDB
    FastAPI is a Python framework for building APIs quickly, efficiently, and with very little code. - Source: dev.to / 4 months ago
  • I Built A " CrowdSense AI " : A Scalable, Context-Aware Platform for Smart Stadiums
    Backend: Python-based FastAPI for its asynchronous I/O capabilities and rapid JSON serialization. - Source: dev.to / 4 months ago
View more

web2py mentions (1)

  • would it be ok to post backup restore code and instructions and have a backups folder for easy finding?
    Web2py {{for _item in response.menu or []:}} {{if len(_item)<4 or not \_item\[3\]:}} {{=_item[0]}} {{else:}} {{=_item[0]}} {{for _subitem in _item[3]:}} {{=_subitem[0]}} {{pass}} {{pass}} {{pass}} {{if 'auth' in globals():}} {{if auth.user:}}{{=auth.user.first_name}}{{else:}}LOGIN{{pass}} {{if auth.user:}} {{=T('Profile')}} {{if 'change_password' not in... Source: over 4 years ago

What are some alternatives?

When comparing FastAPI and web2py, you can also consider the following products

Flask - a microframework for Python based on Werkzeug, Jinja 2 and good intentions.

Microsoft IIS - Internet Information Services is a web server for Microsoft Windows

ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple

Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies

Django - The Web framework for perfectionists with deadlines

LiteSpeed Web Server - LiteSpeed Web Server (LSWS) is a high-performance Apache drop-in replacement.