Tres Seaver <tsea...@palladion.com> writes: > On 07/12/2011 09:25 AM, Éric Araujo wrote: > >> On 07/11/2011 08:41 AM, Éric Araujo wrote:
> >>> I was under the impression that PEP 386 only defined the syntax of > >>> version numbers and a comparison algo, but no semantics. IOW there > >>> is no way for a tool to know that 2.6.33 is devel and 2.6.34 > >>> stable, or that 1.0.4 does not break compatibility with 1.0.2, or > >>> anything else of the sort. […] > > Hmm? In what sense would 2.6.33 ever be used for a "devel" release? Why should it not be? Projects are not bound to insert words anywhere in their version strings for any state of the code. I find inserting words into a version string to be ugly and overly complicated, and I don't recommend it for any project. Fortunately, conforming with PEP 386 doesn't require anyone to do that. Nor does PEP 386 define what a version string like “2.6.33” means. It only says how that version string will sort against other version strings. > If my application got broken by a project that made such a release, I > would be busy ripping out a dependency produced by such an unreliable > project, not arguing whether PyPI could / should implement some > "technical measure" to make everything happy. That expectation (that a development version must have a particular word inserted in the version string) is unreasonable and has no foundation in PEP 386. A tool for automatically producing a “stable-only” mirror can't rely on the version string containing any information about the development status of a version; not even one which conforms perfectly to PEP 386. > If your point is that a "stable-only" mirror could still induce breakage > on projects which use it blindly, I certainly concur. In fact, I have > long asserted that any "integrator" whose production builds uses PyPI > directly is solely responsible for the breakage, when (not if) it occurs. +1. This is what OS distributions are good for: selecting which package versions are suitable for the stability of the OS as a whole. -- \ “I stayed up all night playing poker with tarot cards. I got a | `\ full house and four people died.” —Steven Wright | _o__) | Ben Finney
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