code: def db_credentials(self):
          
          try:
              username = self.config.get('DB', 'username')
              password = self.config.get('DB', 'password')
          except Error:
              username = input("Please enter your KM3NeT DB username: ")
              password = getpass.getpass("Password: ")
          return username, password
docs: Return username and password for the KM3NeT WebDB.