pytorch

d78b638a - Convert string => raw strings so char classes can be represented in Python regex (#50239)

Convert string => raw strings so char classes can be represented in Python regex (#50239) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/50239 Convert regex strings that have character classes (e.g. \d, \s, \w, \b, etc) into raw strings so they won't be interpreted as escape characters. References: Python RegEx - https://www.w3schools.com/python/python_regex.asp Python Escape Chars - https://www.w3schools.com/python/gloss_python_escape_characters.asp Python Raw String - https://www.journaldev.com/23598/python-raw-string Python RegEx Docs - https://docs.python.org/3/library/re.html Python String Tester - https://www.w3schools.com/python/trypython.asp?filename=demo_string_escape Python Regex Tester - https://regex101.com/ Test Plan: To find occurrences of regex strings with the above issue in VS Code, search using the regex \bre\.[a-z]+\(['"], and under 'files to include', use /data/users/your_username/fbsource/fbcode/caffe2. Reviewed By: r-barnes Differential Revision: D25813302 fbshipit-source-id: df9e23c0a84c49175eaef399ca6d091bfbeed936