gender_translate_text

gender_translator = {
    "il": "elle",
    "fou": "folle",
    "le": "la",
}


def gender_translate(**kwargs):
    return {k: gender_translator[v[0]] if v[1] else v[0]
            for k, v in kwargs.items()}


def format_msg(msg, **kwargs):
    return msg.format_map(gender_translate(**kwargs))


if __name__ == '__main__':
    print(format_msg("{il} est {fou}, {il} va {le} tuer !", il=("il", True), fou=('fou', True), le=('le', False)))