When comparing web.py vs Falcon, the Slant community recommends Falcon for most people. In the question“What are the best general-purpose Python web frameworks usable in production sites?” Falcon is ranked 8th while web.py is ranked 13th. The most important reason people chose Falcon is:
Falcon is designed entirely around building REST APIs. It achieves this helps a lot with it being lightweight and simple. It also helps developers take some design choices which would otherwise not be possible with a more general-purpose framework,
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Easy to set up and work with
Web.py is pretty easy to set up and start working with.
Pro Built to build REST APIs
Falcon is designed entirely around building REST APIs. It achieves this helps a lot with it being lightweight and simple. It also helps developers take some design choices which would otherwise not be possible with a more general-purpose framework,
Pro Lightweight with minimal dependencies
Falcon is a very lightweight framework. This can be noticed simply by looking at the dependency list: other than the python standard library, six and mimeparse are the only dependencies.
Pro Performance is really awesome
Cons
Con Can feel constraining to work with
web.py does not have an ORM like Django, and it misses a lot of other features that it's competitors have. This can make developers feel too much constrained by this framework.
Con Limited in scope
Being designed around building REST APIs and the fact that it's minimalistic with very few dependencies makes Falcon opinionated (you should build a REST API) and limited in scope (you shouldn't be using Falcon to build a news site, blog or ecommerce platform).