[pymvpa] Why no PyPI?
debian at onerussian.com
Tue Feb 19 15:49:05 UTC 2013
On Mon, 18 Feb 2013, Ben Acland wrote:
> I am going to take the time to do a deeper investigation of buildout. It
> looks like a potential winner. If it checks out, I'll build a recipe for
> my lab, check it on a few platforms, then post back here if it's
whatever is worthwhile for a lab, might benefit others ;-) so yes --
please do share your findings
> On Feb 17, 2013, at 4:34 PM, Ben Acland <benacland at gmail.com> wrote:
> Homebrew formulas require tests, which can be more or less extensive.
> You can run them after installing by calling `brew test foo`, but
> they're just ruby methods, so conceivably you could just call them as
> the final step of installation. Actually... I don't think it'd be that
> easy. There's an easy way to find out... let me test this out on a
> formula I'm working on right now (for shogun).
> Nope, it's not that easy. Of course after establishing that, it's clear
> why. Won't put the boring details here. The orthodox approach would be
> to put in the instructions "please call `brew test pymvpa` immediately
> after installing". Another approach would be to call `setup.py test`
> from within the install command, which might well work.
> Downside... homebrew only covers mac, and I'm after something
> cross-platform here.
> As for pip... a couple people have tried to get the pip folks to make it
> a little more CPAN like (viz. run tests prior to installation), and
> there's even a branch out there that does it, but as of yet it's not
> part of the main branch. Might be dead in the water.
> As for any package I know of... there is buildout
> (http://www.buildout.org/), which lets you run pretty much anything
> you want as part of installation (being a full build system)... but I'm
> not an expert on it, and apparently maintenance can be a bit of a chore.
> On the upside, it does share with the pip+virtualenv approach the
> benefit of providing an isolated environment, which gets at one of the
> main issues I'm trying to address with all this bothersome questioning
> and probing: setting up and protecting your environment on a shared
> resource where you might not have sudo privileges. Granted, there are
> problems to achieving that fully when it comes to installing the
> non-python dependencies. Buildout might warrant further investigation.
> It's the only one of the options so far that seems to be
> cross-platform-ish, capable of installing non-python dependencies, and
> capable of running unit tests as part of installation. But again, no
> buildout expert here, so these advantages might crumble under closer
> On Feb 17, 2013, at 1:43 PM, Yaroslav Halchenko
> <debian at onerussian.com> wrote:
> On Sun, 17 Feb 2013, Ben Acland wrote:
> See, I knew I was stepping in it :).
> I think I can handle that. Pip only does python stuff, of course,
> but that
> covers the must-haves and the strong recommendations. For the
> there's a way to define external requirements, and print a warning
> "you should really consider installing this." I found a decent
> example of
> something that might be acceptable in the python module Shapely.
> See this
> gist for an example of what happens when you try to install it
> without a c
> library that makes it run faster:
> Would that kind of behavior be acceptable?
> I think so... the only hard requirement is numpy, then very desirable
> scipy () + nose (for testing) + matplotlib (for plotting)
> and then everything else from the link I have provided ;-)
> btw -- does any package you know finishes "installation" by
> the beast? imho it would be nice as well if pymvpa gets tested as
> installed, and in case of failure -- output of mvpa2.wtf() would be
> provided -- this could greatly simplify any needed troubleshooting and
> would prevent (delayed) problems with deployed pymvpa
> If so... yeah, I think I can
> take this on. Otherwise, I'll at least be happy to write a
> formula, but pip wouldn't make a whole lot of sense.
Yaroslav O. Halchenko
http://neuro.debian.net http://www.pymvpa.org http://www.fail2ban.org
Postdoctoral Fellow, Department of Psychological and Brain Sciences
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834 Fax: +1 (603) 646-1419
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