Il 01 marzo 2012 02:45, Raymond Hettinger <raymond.hettin...@gmail.com> ha scritto: > > On Feb 29, 2012, at 4:23 PM, Victor Stinner wrote: > > One of my colleagues implemented recently its own frozendict class > (which the "frozendict" name ;-) > > > I write new collection classes all the time. > That doesn't mean they warrant inclusion in the library or builtins. > There is a use case for ListenableSets and ListenableDicts -- do we > need them in the library? I think not. How about case insensitive > variants? > I think not. There are tons of recipes on ASPN and on PyPI. > That doesn't make them worth adding in to the core group of types. > > As core developers, we need to place some value on language > compactness and learnability. The language has already gotten > unnecessarily fat -- it is the rare Python programmer who knows > set operations on dict views, new-style formatting, abstract base classes, > contextlib/functools/itertools, how the with-statement works, > how super() works, what properties/staticmethods/classmethods are for, > differences between new and old-style classes, Exception versus > BaseException, > weakreferences, __slots__, chained exceptions, etc. > > If we were to add another collections type, it would need to be something > that powerfully adds to the expressivity of the language. Minor variants > on what we already have just makes that language harder to learn and > remember > but not providing much of a payoff in return. > > > Raymond > > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > http://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > http://mail.python.org/mailman/options/python-dev/g.rodola%40gmail.com >
+1 --- Giampaolo http://code.google.com/p/pyftpdlib/ http://code.google.com/p/psutil/ http://code.google.com/p/pysendfile/ _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
