Compare FastAPI and web2py
Fast API is a high-performance web framework for building web applications with Python 3.6+ based on standard Python type hints. It is designed to be high performance and easy to learn.
web2py was originally designed as a teaching tool, but it gained adoption outside of the academic world. It is a full-stack framework containing all the components needed to build fully functional web applications using the Model View Controller (MVC) pattern. Inspired by the Ruby on Rails and Django. It is not very popular right now but was ranked amongst top Python web frameworks in 2011.
Let's see how FastAPI and web2py compare on various factors and features and which to choose when.
Minimalistic framework based on starlette and pydantic for building fast web applications using async IO.
Python full-stack for building web applications.
New addition to the Python web frameworks family but its popularity is on the rise.
Uber (internal use,) Explosion AI, Microsoft (internal use)
Not in use at any large company.
100 job openings which list Fast API as a requirement.
8 job openings which list web2py as a requirement.
Web2py takes a unique approach where models and controllers are executed in a single global environment, which is initialized at each HTTP request. While there are pros to this approach, such as developers never having to worry about cleaning up or avoid conflict between requests, the major disadvantage is that the code is models is executed with every request which carries a performance penalty.
Fast API is flexible to code and doesn't restrict users to a particular project or code layout.
Not as flexible as microframeworks, but doesn't always get in the way.
Ease of Learning
Easy to learn especially for people who are new to web development. However, it doesn't have a large number of online resources, courses and tutorials.
Ease of Learning
Limited online tutorials and resources, and many are several years old. The best resource for learning is web2py author's own "web2py Complete Reference Manual"
, which seems to be written in 2013.
Through Plugins or Extensions
FastAPI doesn't come with built in ORM, however is compatible with SQLAlchemy
, Pydantic ORM mode.
Ships with a Database Abstraction Layer (DAL) which supports MySQL, PostgreSQL, SQLite, and many other relational databases.
Fast API supports many NoSQL databases like MongoDb, ElasticSearch, Cassandra, CouchDB and ArangoDB. Read more here
No built-in support. Very limited support for NoSQL databases. Currently, it only supports Google Datastore on the Google App Engine.
Yes, uses Swagger as an API documentation web user interface.
Yes ships with a built-in admin panel.
Yes, allows developers to build REST APIs quickly.
FastAPI provides several tools for many security schemes in the fastapi.security module. Not enough data.
Built-in protection against input injections, XSS, and common vulnerabilities. Read more here
. It has known security vulnerabilities. Please see list here
FastAPI supports Jinja2 for templating and also supports aiofiles for serving static files
Ships with it's own Forms
, with basic features.
Built-in support. Read more here
Fast API supports OAuth2, JWT and simple HTTP authentiation.
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This page was made possible thanks to contributions from Soumyaranjan Acharya
who provided data and write up for Fast API.