david.l...@preisshare.net wrote: >>> No application developer will quickly figure out what a tilde means. >>> Maybe >>> it means 'roughly', but it requires too much thought and is ambiguous. >>> 2.5 >>> is not roughly 2.5.2. It is the same exactly. >>> >>> Before we had : Requires-Python: 2.5, 2.6 >>> >>> That made much more sense. It was simple and unambiguous, and is >>> relevant >>> to typical packaging scenarios. >> Unfortunately, it is fairly ambiguous, and makes no sense. It means >> "requires Python 2.5 *AND* requires Python 2.6", which is a requirement >> that no single version can meet. > > No, it means a library requires either python 2.5 *OR* python 2.6 to be > installed properly.
Well, the PEP says that the comma means "and", see http://www.python.org/dev/peps/pep-0345/#version-specifiers If the comma would mean "or", then what would ">1.0, !=1.3.4, <2.0" mean? above 1.0 OR unequal to 1.3.4 OR below 2.0 That would mean that *any* version would match that spec, and then the spec would be meaningless. If that's not clear, ask whether 4.0 would match: yes, it would, because it's >1.0. What about 0.9: yes, it's <2.0. Regards, Martin _______________________________________________ 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
