When comparing web.py vs Nagare, the Slant community recommends web.py for most people. In the question“What are the best general-purpose Python web frameworks usable in production sites?” web.py is ranked 13th while Nagare is ranked 14th. The most important reason people chose web.py is:
Web.py is pretty easy to set up and start working with.
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Pros
Pro Easy to set up and work with
Web.py is pretty easy to set up and start working with.
Pro Continuation based web framework
Nagare allows for simpler programming flow hiding client/server requests.
Pro 100% Python web application development - no HTML, CSS or JS needed
Nagare is a mature web framework that saves you from manually creating routes. It basically is just a Python object graph.
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 Stateful server that maintains both session and UI states server side
Con Uses old YUI2 JS framework
Nagare uses YUI2 internally for XHR requests. YUI2 has been deprecated since 2011.