[MRG + 1] FIX Include PyFuncDistance attributes while pickling.#4362

Merged

ogrisel merged 3 commits intoscikit-learn:masterfrom

raghavrv:make_PyFuncDistance_picklable

May 22, 2015

Commits on May 6, 2015

FIX Include PyFuncDistance attributes while pickling.
raghavrv
committed
TST Add test to make sure BallTree remains picklable even with callable metric
raghavrv
committed
TST make sure DistMetric is picklable with both predefined as well as custom metric
raghavrv
committed