BUG: use ~/.cache and store fama-french for 1 bday
BUG: use ~/.cache and store fama-french for 1 bday

femtotrader/pyfolio,quantopian/pyfolio,quantopian/pyfolio,femtotrader/pyfolio,ChinaQuants/pyfolio,chayapan/pyfolio,ChinaQuants/pyfolio