[Patches] [ python-Patches-1459011 ] Mutable Iterators PEP
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Mon Apr 10 04:22:47 CEST 2006
Patches item #1459011, was opened at 03/26/06 18:08
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Category: Core (C code)
Group: Python 2.5
>Status: Closed
Resolution: Later
Priority: 1
Submitted By: Adam DePrince (adamdeprince)
Assigned to: Nobody/Anonymous (nobody)
Summary: Mutable Iterators PEP
Initial Comment:
This patch is a partial implementation of the mutable
iterators PEP currently being discussed on the
python-3000 mailing list.
It differs from the PEP in a few ways:
1. We havn't quite eliminiated the annoying iter
variants of dict.keys/values/items because parts of the
python proper expect the non iter variants to return
something indexable.
2. We currently don't support the java fast-fail
semantics for concurrent mutation. This requires some
discussion, because it might involve a small
performance burden on all structures that support
mutable iterators, evne when there are currrently
running.
While the eliminiation of iter{keys/items/values} is
hoped for 3.0, there is no reason the iters couldn't
silently become mutable for 2.5. I'll discuss this in
morn depth on the mailing list.
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>Comment By: SourceForge Robot (sf-robot)
Date: 04/09/06 19:22
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