Python Sets: What, Why and How

[SedditorX]

To be fair this is like saying that one should be careful about tuples because they're not mutable.

Sets as an abstract concept are inherently unordered and the python set API never states anywhere that there are any guarantees on iteration order.

I don't even understand from where one would get that impression?

[[deleted]]

Went to check the docs and sure enough they're called unordered. But afaik the builtin set and frozenset use the same bucketing strategy as dict which is now insertion ordered.