Re: Update PEP 508 to allow version specifiers
Donald Stufft <[email protected]>
| Newsgroups | gmane.comp.python.distutils.devel |
|---|---|
| Message-ID | <[email protected]> |
> On Jan 29, 2019, at 9:48 AM, Xavier Fernandez <[email protected]> wrote: > > I disagree that it *needs* the name: since the link is declared as a dependency, the installer will necessarily need to check/download it at some point to install it and could discover the package name at that point, just like it will discover the version at the same point. > Providing the name in the direct reference is an optimization that ease the work of the installer and allowing to provide a version specifier could be an other one. > It needs the name to do that without downloading, which is ideally the direction we’re heading towards, that we can do as much work prior to downloading files as possible. A version specifier is something like “>=10”. It doesn’t make any sense to say “I depend explicitly on the version of foo that exists at this URL, and also that URL has to be >= 10”. You’re already telling us that you depend on that URL, the version specifier is completely nonsensical. But lifting the *version* (as opposed to a version specifier) that is expected to be at that URL into the dependency declaration is fine, it’s just baking more information into the specifier to make it easier to handle. -- Distutils-SIG mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/distutils-sig.python.org/ Message archived at https://mail.python.org/archives/list/[email protected]/message/Y46FNL3GGDTCQCXFROPR7QX2TEENKHCA/