code: def set_password(self, service, username, password):
          
          service = escape_for_ini(service)
          username = escape_for_ini(username)
  
          # ensure the file exists
          self._ensure_file_path()
  
          # load the keyring from the disk
          config = configparser.RawConfigParser()
          config.read(self.file_path)
  
          # update the keyring with the password
          if not config.has_section(service):
              config.add_section(service)
          config.set(service, username, password)
  
          # save the keyring back to the file
          config_file = codecs.open(self.file_path, 'w', 'utf-8')
          try:
              config.write(config_file)
          finally:
              config_file.close()
docs: Write the password in the file.