The maintained fork of Quantopian's empyrical — risk statistics, no plots.
FreeOpen source
Stefan Jansen
2 products in the catalogue, each on its own card. One vendor, several products, because a merged card could not be compared or priced: the halves have different buyers and different competitors.
The maintained fork of Quantopian's Zipline. Bring your own data — it ships almost none.
FreeOpen source