better cython debugging
This is still super buggy but hopefully this gets people a bit closer
This pull request is stale because it has been open for thirty days with no activity. Please [update](https://pandas.pydata.org/pandas-docs/stable/development/contributing.html#updating-your-pull-request) and respond to this comment if you're still interested in working on this. looks like some merge conflicts have crept in - if they're resolved, then can this be merged? @WillAyd is this something we want to move forward with? Can you fix the conflicts if it is please. Sorry forgot about this one. Yea I think its only helpful so happy to move forward with it Thanks for this @WillAyd 