For what it’s worth, Python dictionaries have .get(key, default) and .setdefault(key, default). The former is non-mutating. Its behavior is also different depending on arguments length. If the default is not passed, it will throw an exception. If a default is passed, even if that default is None, it will not throw an exception. I’ve found both forms useful.
Kris Kowal _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
