Hi I am new to the ML4Trading site. I have been reading some of the blog posts. I am weighing the effort vs the cost of developing a backtesting/simulation capability in Python using the available libraries. The old quantopian libraries appear to be kept up to date on a piecemeal basis and appear to very finicky with regards to the environment and configuration they run in. I am also new to Python.
Q. How stable are the latest versions of Zipline any Pyfolio?
Q. How dependent are the Zipline and Plfolio libraries on the quantopian data bundle format? I would like to simply download data from yahoo and run the code against it.