code: def Auth(email=None, password=None):
      
      gd_client = SpreadsheetsService()
      gd_client.source = "texastribune-ttspreadimporter-1"
      if email is None:
          email = os.environ.get('GOOGLE_ACCOUNT_EMAIL')
      if password is None:
          password = os.environ.get('GOOGLE_ACCOUNT_PASSWORD')
      if email and password:
          gd_client.ClientLogin(email, password)
      return gd_client
docs: Get a reusable google data client.