Should we provide that as an abstraction in the wagon maybe so that it allows for easy importing?
On Thu, Nov 24, 2016 at 3:49 PM Nick Coghlan <[email protected]> wrote: > On 24 November 2016 at 16:45, Nir Cohen <[email protected]> wrote: > > Well, creating on Windows and deploying on Linux will only be possible if > > the entire set of dependencies either have no C extensions or are > manylinux1 > > wheels.. but yeah, that's pretty much what we're doing right now with our > > reference implementation. > > > > Regarding zipimporter, as far as I understand (correct me if I'm wrong) > > there's no such a solution for wheels (i.e. you can't use zipimporter on > a > > zip of wheels) so does that means we'll have to package python files for > all > > dependencies directly in the archive? > > Right, there would be a couple of significant barriers to doing this > in the general case: > > - firstly, wheels themselves are officially only a transport format, > with direct imports being a matter of "we're not going to do anything > to deliberately break the cases that work, but you're also on your own > if anything goes wrong for any given use case": > > https://www.python.org/dev/peps/pep-0427/#is-it-possible-to-import-python-code-directly-from-a-wheel-file > - secondly, I don't think zipimporter handles archives-within-archives > - it handles directories within archives, so it would require that the > individual wheels by unpacked and the whole structure archived as one > big directory tree > > Overall, it sounds to me more like the "archive an entire installed > virtual environment" use case than it does the "transfer a collection > of pre-built artifacts from point A to point B" use case (which, to be > fair, is an interesting use case in its own right, its just a slightly > different problem). > > Cheers, > Nick. > > -- > Nick Coghlan | [email protected] | Brisbane, Australia >
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