[Python-Dev] PEP 0424: A method for exposing a length hint

[Nick Coghlan]

Proposing anything substantially more complicated than what is currently
implemented in CPython will just get the idea rejected. The substantial
immediate gain for PyPy is in skipping the memory resizing when building
containers from itertools iterators, not anywhere else.

--
Sent from my phone, thus the relative brevity :)
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