Add control for sub-processes created by Popen#362
Open
xihuai18 wants to merge 5 commits intogoogle-deepmind:masterfrom
Open
Add control for sub-processes created by Popen#362xihuai18 wants to merge 5 commits intogoogle-deepmind:masterfrom
xihuai18 wants to merge 5 commits intogoogle-deepmind:masterfrom