def get_browser_locale(self, default=None):
        if default is None:
            default = self.conf.I18N_DEFAULT_LANG
        return super(I18nMixin, self).get_browser_locale(default=default)
Overwrite default behavior with correct
dataset/ETHPy150Open niwinz/tornado-webtools/webtools/handlers/i18n.py/I18nMixin.get_browser_locale