Deprecation warning due to invalid escape sequences

[tirkarthi]

Deprecation warnings are raised due to invalid escape sequences. This can be fixed by using raw strings or escaping the literals. pyupgrade also helps in automatic conversion : https://github.com/asottile/pyupgrade/

google-api-python-client/describe.py

Line 229 in cd4e8f4

m = re.search("^\s+([a-zA-Z0-9_]+): (.*)", line)

python -Wall -m py_compile describe.py
describe.py:203: DeprecationWarning: invalid escape sequence \s
  m = re.search('^\s+([a-zA-Z0-9_]+): (.*)', line)