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submitted 1 week ago by abhi9u@lemmy.world to c/technology@lemmy.world

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[–] sugar_in_your_tea@sh.itjust.works 1 points 1 week ago

That's just not true:

not x - has an empty value (None, False, [], {}, etc)
len(x) == 0 - has a length (list, dict, tuple, etc, or even a custom type implementing __len__)

You can probably assume it's iterable, but that's about it.

But why assume? You can easily just document the type with a type-hint:

def do_work(foo: list | None):
    if not foo:
        return
    ...