Hi,
> Together with the language-team, we decided to implement a
> LazyEnumeratedSet (see my patch in the queue) which takes as input an
> iterable (finite or infinite) and mimic a set which contains the
> element of the iterable. It is very useful when we do not want to
> implement a specific class... What do you think of it ?
>
> On the other hand, I'm a bit disappointed as it is not possible to
> pickle an iterator and hence my new class does not pass the TestSuite.
> Any idea ?
I think this is a good idea to have this feature for the casual user but that
it should not be used in the code. The reason are:
1 - The set will not be picklable;
2 - The usage of tee is likely to leak a lot of memory;
3 - For programmer, I don't think it is a big save compared to subclass and
implementing the Cardinality and __iter__ methods. Please have a look it
some methods couldn't be lifted in the category EnumeratedSet.
If you agree, as a consequence, you should add a big warning at the beginning
of the file.
Finally, may I suggest the alternative name EnumeratedSetFromIterator ?
Cheers,
Florent
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