use raw strings for regex patterns
use raw strings for regex patterns

as customary in Python to avoid need for double escaping of backslashes

geometalab/drf-utm-zone-info,geometalab/osmaxx-frontend,geometalab/osmaxx-frontend,geometalab/osmaxx,geometalab/osmaxx,geometalab/osmaxx-frontend,geometalab/osmaxx,geometalab/osmaxx,geometalab/drf-utm-zone-info,geometalab/osmaxx-frontend