[Python-ideas] Re: Enhancing iterator objects with map, filter, reduce methods

[Raimi bin Karim]

Steven D'Aprano wrote:
> Does anyone know what builtin or stdlib objects iterators fail to 
> implement `__iter__`? I haven't been able to find any -- all the obvious 
> examples do (map, filter, reversed, zip, generators, list iterators, 
> set iterators, etc).
Could it possibly be... the async iterator family? Those beasts have 
__aiter__ and __anext__ methods. 
https://docs.python.org/3/reference/datamodel.html#asynchronous-iterators
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