use read_pref as ctor arg to MongoClient, no reason not to.
use read_pref as ctor arg to MongoClient, no reason not to.

jell0720/cubes,cesarmarinhorj/cubes,cesarmarinhorj/cubes,she11c0de/cubes,zejn/cubes,jell0720/cubes,ubreddy/cubes,noyeitan/cubes,cesarmarinhorj/cubes,zejn/cubes,ubreddy/cubes,noyeitan/cubes,she11c0de/cubes,pombredanne/cubes,noyeitan/cubes,ubreddy/cubes,zejn/cubes,jell0720/cubes,she11c0de/cubes,pombredanne/cubes,pombredanne/cubes