My apologies. My line for _geos_c_version_re had an extra ‘x’ in it for testing.
It should read: _geos_c_version_re = re.compile ('[^- ]+-[^- ]+-([0-9][.0-9]+[0-9])+( r[0-9]+)?’) -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org