quantopian/zipline — pull request #138 by richafrank (2013-04-19 20:18:04+00:00)
Title: ENH: Stream benchmark and treasury data when downloading

instead of loading entire csv or xml into memory.

Using ```res = requests.get(..., stream=True)``` and ```res.iter_lines()``` with lazy, iterable consumers. We end up with the full, converted data set, but we created it iteratively.