old_contents: from database.dict_converters.converter_base import ConverterBase
  
  
  class TeamConverter(ConverterBase):
      SUBVERSIONS = {  # Increment every time a change to the dict is made
          3: 3,
      }
  
      @classmethod
      def _convert(cls, teams, dict_version):
          CONVERTERS = {
              3: cls.teamsConverter_v3,
          }
          return CONVERTERS[dict_version](teams)
  
      @classmethod
      def teamsConverter_v3(cls, teams):
          return map(cls.teamConverter_v3, teams)
  
      @classmethod
      def teamConverter_v3(cls, team):
          has_nl = team.nl and team.nl.city and team.nl.state_prov and team.nl.country
          team_dict = {
              'key': team.key.id(),
              'team_number': team.team_number,
              'nickname': team.nickname,
              'name': team.name,
              'website': team.website,
              'rookie_year': team.rookie_year,
              'motto': team.motto,
              'home_championship': team.championship_location,
          }
          team_dict.update(cls.constructLocation_v3(team))
          return team_dict
  
new_contents: from database.dict_converters.converter_base import ConverterBase
  
  
  class TeamConverter(ConverterBase):
      SUBVERSIONS = {  # Increment every time a change to the dict is made
          3: 4,
      }
  
      @classmethod
      def _convert(cls, teams, dict_version):
          CONVERTERS = {
              3: cls.teamsConverter_v3,
          }
          return CONVERTERS[dict_version](teams)
  
      @classmethod
      def teamsConverter_v3(cls, teams):
          return map(cls.teamConverter_v3, teams)
  
      @classmethod
      def teamConverter_v3(cls, team):
          has_nl = team.nl and team.nl.city and team.nl.state_prov and team.nl.country
          default_name = "Team {}".format(team.team_number)
          team_dict = {
              'key': team.key.id(),
              'team_number': team.team_number,
              'nickname': team.nickname if team.nickname else default_name,
              'name': team.name if team.name else default_name,
              'website': team.website,
              'rookie_year': team.rookie_year,
              'motto': team.motto,
              'home_championship': team.championship_location,
          }
          team_dict.update(cls.constructLocation_v3(team))
          return team_dict
  
subject: Add default team name/nickname