def _tenths_version(full_version):
 match = _tenths_version_pattern.match(full_version)
 if match:
  return match.group(1)
 return ''

def _tenths_version ( full_version ) : match = _tenths_version_pattern . match ( full_version ) if match : return match . group ( 1 ) return ''
return the major and minor version numbers from a full version string .