43d9f2d1e8
Summary: Use io.open instead of codecs.open according to here https://stackoverflow.com/questions/10971033/backporting-python-3-openencoding-utf-8-to-python-2 Add `u` prefix to string literal to make them utf-8 in python2. Reviewers: anemet, serge-sans-paille Reviewed by: serge-sans-paille Differential Revision: https://reviews.llvm.org/D73011