src/transformers/commands/user.py/LoginCommand/run
class LoginCommand:    def run(self):
        print(
            ANSI.red(
                "WARNING! `transformers-cli login` is deprecated and will be removed in v5. Please use "
                "`huggingface-cli login` instead."
            )
        )
        print(  # docstyle-ignore
            """
        _|    _|  _|    _|    _|_|_|    _|_|_|  _|_|_|  _|      _|    _|_|_|      _|_|_|_|    _|_|      _|_|_|  _|_|_|_|
        _|    _|  _|    _|  _|        _|          _|    _|_|    _|  _|            _|        _|    _|  _|        _|
        _|_|_|_|  _|    _|  _|  _|_|  _|  _|_|    _|    _|  _|  _|  _|  _|_|      _|_|_|    _|_|_|_|  _|        _|_|_|
        _|    _|  _|    _|  _|    _|  _|    _|    _|    _|    _|_|  _|    _|      _|        _|    _|  _|        _|
        _|    _|    _|_|      _|_|_|    _|_|_|  _|_|_|  _|      _|    _|_|_|      _|        _|    _|    _|_|_|  _|_|_|_|

        """
        )
        username = input("Username: ")
        password = getpass()
        try:
            token = self._api.login(username, password)
        except HTTPError as e:
            # probably invalid credentials, display error message.
            print(e)
            print(ANSI.red(e.response.text))
            exit(1)
        HfFolder.save_token(token)
        print("Login successful")
        print("Your token:", token, "\n")
        print("Your token has been saved to", HfFolder.path_token)