How important is flask in this mix? How difficult would it be to back this by a django app for example? I'm asking because the charting would be REALLY useful for me right now, and I already have the django models...
The flask dependency is pretty strong because I used the requests module for the api route functions. It should be possible to override it and use django instead, but I don't know django that well. It's probably a good idea to separate that dependency so it's a little more flexible.
Yup, that one. I planned on simply filtering a pandas dataframe using the request.args that are passed in. The javascript components can be used directly, but I wrote the python wrappers as a convenience for really simple dataframes.
If you already have a working web app, why not just use something like flot[1] for your charting (or d3 if you are up for it). Seems like pyxley is more targeted at people who have some data in pandas and want to get some visualizations on the web quickly.