Nick Coghlan <ncogh...@gmail.com> added the comment:
As Robert noted, the map() and filter() builtins in Python 3 are already lazy
and there's no reason to expand the iterator protocol for this functionality.
Map and filter also have dedicated syntax in the form of comprehensions and
generator expressions:
itr = (x for x in map(abs, range(10)) if x % 5 == 0)
Furthermore, the standard library already provides an entire module of tools
for creating and working with lazy iterators in both Python 2 and Python 3:
http://docs.python.org/library/itertools
----------
nosy: +ncoghlan
resolution: -> rejected
status: open -> closed
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue14961>
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