Is Brython entirely client-side?
Brython itself seems to be completely client side, but whether that will be enough really depends on the code you wrote. It is not a full blown Python interpreter and does not have the libraries. You might want a backend to support it or use another client side solution as suggested in the comments.
Given how few real web hosters support Python, I think it is very unlikely that Dropbox would be suitable for this, in case you do need processing on the server as well.
I have a piece of code written in Python. I would like to put that code in a webpage. Brython seems like the simplest way to glue the two things together, but I don't have a server that can actually run code on the server side.
Does Brython require server-side code, or can I host a page using it on the cheap with (say) Dropbox?