code: def change_location(self, old_location_name, new_location_name, new_parent_name=None,
                          new_er_data=None, new_pmag_data=None, replace_data=False):
          
          location = self.find_by_name(old_location_name, self.locations)
          if not location:
              print('-W- {} is not a currently existing location, so it cannot be updated.'.format(old_location_name))
              return False
          location.change_location(new_location_name, new_er_data, new_pmag_data, replace_data)
          return location
docs: Find actual data object for location with old_location_name.
          Then call Location class change method to update location name and data.