@property
  def coordinates(self):
    '''
    Tuple of Decimals in the form of (lat, lon) or None
    '''
    if not getattr(self, '_coordinates', False):
      query_params = {
        'prop': 'coordinates',
        'colimit': 'max',
        'titles': self.title,
      }

      request = _wiki_request(query_params)

      if 'query' is request:
        coordinates = request['query']['pages'][self.pageid]['coordinates']
        self._coordinates = (Decimal(coordinates[0]['lat']), Decimal(coordinates[0]['lon']))
      else:
        self._coordinates = None

    return self._coordinates
dataset/ETHPy150Open goldsmith/Wikipedia/wikipedia/wikipedia.py/WikipediaPage.coordinates/operator `in` -> `is`