Freddie Vargus

Hi @prasants can you try installing Zipline in a Py35 virtualenv? We don't yet have support / packages for Py37

Hi @hotea you're correct in that the data is downloaded all at once; we don't do incremental updates. I think it's possible that this could be a good addition, though...

Hey @zhangzheng88 thanks for opening up this issue. The size limit has to do with some stuff in BColz (which you can look through if you're curious, in this repo)...

@JoaoAparicio where are you ingesting data from? My default action to something like that is just `fillna(0)` then `ffill` and then see what happens/figure out if that's appropriate (which in...

@ehebert Would you say [this line](https://github.com/quantopian/zipline/blob/611f1702c72cf26ee1539fb5bab0d96f2c7b0285/zipline/data/us_equity_pricing.py#L119) fixes this issue?