[Distutils] Requirent specifiers specified? :)
jim at zope.com
Thu Jun 22 19:05:10 CEST 2006
On Jun 22, 2006, at 12:49 PM, Phillip J. Eby wrote:
> At 12:26 PM 6/22/2006 -0400, Jim Fulton wrote:
>> On Jun 21, 2006, at 5:11 PM, Phillip J. Eby wrote:
>>> """Requirement strings basically consist of a distribution name, an
>>> optional list of "options" (more on this in a moment), and a
>>> comma- separated list of zero or more version conditions. Version
>>> conditions basically specify ranges of valid versions, using
>>> comparison operators. The version conditions you supply are sorted
>>> into ascending version order, and then scanned left to right until
>>> the package's version falls between a pair of > or >= and < or <=
>>> conditions, or exactly matches a == or != condition."""
>> I don't think this is right. :)
>> When scanning left to right, 1.9 matches !=1.1, so it should match
>> since it is the highest version, it should be returned. Either your
>> of the algorithm is incorrect or I'm misunderstanding it.
> You're missing the "exactly matches" part. The relevant context
> is: "Until the package's version ... exactly matches a == or !=
> condition". Perhaps making that "a == or != condition's version"
> would have been clearer, as that's what I meant by that phrase.
> Anyway, "1.9" does not exactly match the "1.1" in "!=1.1".
Um, OK. So I guess the idea is that we scan these things trying to
make a decision.
The decision is either match or not match. Is that how I was supposed
to read the above quote?
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