I’m a bit confused — would adding a “literal” form for frozenset provide much, if any, of an optimization? If not,
that means it’s only worth doing for convenience.
How often do folks need a frozen set literal? I don’t think I’ve ever used one.
You won't have used one because they have not yet existed (hence this thread).
If we did, then f{‘this’: ‘that’} should make a frozen dict, yes?
A frozen dict would also be useful but the implementation doesn't exist. If it did exist then in combination with this proposal that syntax for frozen dicts would be an obvious extension.
A more relevant question right now is if any other set syntax should apply to frozensets e.g. should this work:
>>> squares = f{x**2 for x in range(10)}
--
Oscar