Reports

I may assume the next:

Check the source code of robin_stocks.robinhood.authentication.login https://robin-stocks.readthedocs.io/en/latest/_modules/robin_stocks/robinhood/authentication.html
as you may see there

     if 'access_token' in data:
        token = '{0} {1}'.format(data['token_type'], data['access_token'])
        update_session('Authorization', token)
        set_login_state(True)
        data['detail'] = "logged in with brand new authentication code."
        if store_session:
            with open(pickle_path, 'wb') as f:
                pickle.dump({'token_type': data['token_type'],
                             'access_token': data['access_token'],
                             'refresh_token': data['refresh_token'],
                             'device_token': payload['device_token']}, f) else:
        raise Exception(data['detail'])

so, I think access_token is not in data and part raise Exception(data['detail']) is invoked, but your data does not contain detail field and KeyError: 'detail' is raised.

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