pytorch

9705d60a - get rid of deprecated thread.isAlive() to use py2.6 modern form is_alive()

get rid of deprecated thread.isAlive() to use py2.6 modern form is_alive() Summary: Codemod to remove all thread.isAlive() since it throws a warning that is breaking some tests that monitor the output of their cli's is_alive() was added in python 2.6 this is super safe This is a codemod I don't care if the code supports python3, just that its python code Test Plan: unittests Reviewed By: cooperlees Differential Revision: D18069520 fbshipit-source-id: 4ca4dcb541c0b0debeb194aba5d060152ad0ef0e