At 01:01 PM 2/11/2007 -0500, Jim Fulton wrote: >On Feb 10, 2007, at 7:44 PM, Phillip J. Eby wrote: >>At 02:20 PM 2/10/2007 -0500, Jim Fulton wrote: >>>On Feb 10, 2007, at 2:16 PM, Phillip J. Eby wrote: >>>>At 12:54 PM 2/10/2007 -0500, Jim Fulton wrote: >>>... >>> >>>>>(Note: Buildout uses PackageIndex to locate and fetch >>>>>distributions. >>>>>It then installs distributions itself. if the distribution is >>>>>already an egg, then this is straightforward. Otherwise, buildout >>>>>invokes easy_install to do the installation. It can't get a return >>>>>value from easy_install, so it uses an Environment to find the egg >>>>>that easy_install created.) >>>> >>>>Note that easy_install can be told to --record what files it >>>>installs, so you could build a WorkingSet or Environment from that >>>>list. >>> >>>I looked at that a while back. I don't remember why I didn't take >>>that approach. >>> >>>At this point, I think it would be easier to special-case ==dev. :) >> >>Ah, but setuptools has a ==dev06, and I think other people have >>used other tags to denote various SVN branches. The name used to >>denote the version is incidental, IOW, so that way lies N special >>cases, all different. :) > >I really don't understand this feature.
That's because there is no feature, at least not the way you're thinking about it. Marking a link with "#egg=projname-version" simply indicates that easy_install should consider that link to be for that project and version, regardless of what the link appears to be pointing to. Using a version of "dev" to denote a subversion repository link is therefore merely a *convention*, not a feature; it has NO special handling in easy_install. Meanwhile, the use of two versions in a requirement string (so that a subversion link tagged "dev" would be accepted for download, and the installed version would appear to meet the requirement) was a hack invented by a user, not me. :) And that hack, along with all the other behavior being seen, is merely an emergent property of the fact that you can label links, and easy_install's normal link-seeking behavior. _______________________________________________ Distutils-SIG maillist - [email protected] http://mail.python.org/mailman/listinfo/distutils-sig
