[Distutils] Common version-comparison semantics for peace love and harmony
ben+python at benfinney.id.au
Sat Nov 28 12:53:26 CET 2009
Eric Smith <eric at trueblade.com> writes:
> Ben Finney wrote:
> > That is, you want me to propose an example version string X. I'm
> > asking for you to tell me corresponding examples of version strings
> > W and Y where:
> > W < X < Y
> > since the comparison semantics are what we're discussing here.
> W = 3.3.0
> Y = 3.3.1
> If you're going to suggest 18.104.22.168 or some such
Yes. Or any version string that would obviously fall between the two.
> I think that won't work. It's important that code sees that as
> 3.3.1.<something>. I've seen code that fails when the pre-release
> versions have a different MAJOR.MINOR.MICRO than the final version.
It's exactly that kind of code that I don't feel needs to be
accommodated. It's clearly causing ambiguities and contortions, and now
we talk about needing Python-specific version comparison algorithms in
order to automate the comparison.
Why is this worth the trouble, when the standard could simply describe
obvious-to-everyone version comparison semantics that are far easier for
everyone to get right?
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