Hi,

On Thu, Jan 9, 2014 at 7:16 PM, Aaron Meurer <[email protected]> wrote:
<snip>
>> Have the authors of conda gone on the distutils mailing lists to
>> advocate conda as a solution to the distutils problem?
>
> A lot of conda is built around the frustration of the bad design
> decisions of distutils plus the inability for the community to really
> understand the needs of the scientific community, so conda works more
> or less around distutils (the build stage works on top of distutils,
> if you want, but the install stage works independent of it).
>
> To answer your question, I'm not sure what direct advocation has been
> done, but the core packaging guys are definitely aware of conda.

Yes, that was my impression.

>>> In fact, a lot of people are starting to use conda (either using
>>> Anaconda or separate from it), because it really solves these problems
>>> (this includes people at Berkeley).
>>
>> I may not be talking to those people for some reason :)
>>
>>> The great thing about Anaconda (the distribution) is that it comes
>>> with things that really enhance the SymPy experience, like the IPython
>>> notebook, matplotlib, the IPython qtconsole (which is a serious pain
>>> to install from source even on Mac OS X), numpy, scipy, and so on. We
>>> have to remember with SymPy that we are part of the SciPy stack
>>> (http://www.scipy.org/about.html).
>>
>> Yes, I teach using a lot of that stack, so I too need all the
>> dependencies installed.   We agree that Anaconda is convenient, but
>> may be we disagree about the potential risks to the ecosystem.
>>
>>>>
>>>> I'm not suggesting that we deprecate the large installers, but only we
>>>> be careful to make sure that other options exist.
>>>>
>>>> I'm happy to do the extra work over the hour needed for sympy release,
>>>> to generate the windows installers, and test them.
>>>
>>> The issue is that I really want it to be possible to make the entire
>>> release by myself, whenever I want to. Far be it from me to turn away
>>> help, but the kind of help that actually isn't helpful is to say,
>>> "sure, I can help you do that whenever you do a release. Just ping
>>> me".
>>
>> Well - you plan to do the release without the windows installers.  So,
>> why not - do the release without the windows installers - and then
>>
>> a ) ping me to upload the windows installers OR
>> b) let me set up an automated system to build the installers on our
>> buildbots and you can upload those after triggering the build on the
>> web and downloading the built installers to your machine.
>>
>> There's no need for the windows installers to arrive at the same time
>> as the source installers is there?  Why not leave the binary
>> installers as pleasant extras on pypi to be uploaded when ready.
>> That's what the matplotlib guys have done for the last release, for
>> example (for OSX).
>>
>>> And it isn't you personally. I don't want the release to become
>>> dependent on *any* one person, myself included. That's why I worked so
>>> hard to make the whole release process automated, so that it can be
>>> reproduced by anyone (with the caveat that I'll need to give you
>>> access to PyPI if you want to do it, but I'll do that for any core
>>> developer who volunteers to do a release).
>>
>> As you can give access to pypi, I can give access the buildbot
>> machinery, or set up the machinery to do the work automatically.  The
>> buildbot stuff is all on github, so it would not be very hard to set
>> up your own buildbot farm if you don't want to use ours.  I agree
>> completely that it's good to automate the process and make it easy to
>> pass on - we had the same idea when setting up the buildbots.
>
> I suppose if you want to set that up we can support it.  Are these
> buildbots capable of testing the installers so that we can be sure
> that they work?

Yes - they build the installer and then install it into a virtualenv
and run the tests before uploading to a public web directory.  Here's
one example:

http://nipy.bic.berkeley.edu/builders/nibabel-bdist32-32/builds/49

It sounds like a plan.  I'll set those up.

>>> By the way, just to be clear of something, are you requesting the
>>> Windows installers, or just offering to help make them? I'm not asking
>>> to discredit you, but simply because if you do, that's an argument to
>>> do it (because as I noted earlier, if enough people request it, I
>>> could be convinced).
>>
>> You're asking because, if I do not myself want the installers, the
>> offer of help is not useful?
>
> No, again, not trying to discredit you or anything. Just trying to
> tally a vote :)
>
>>
>> Yes, I want the installers, because I'm going to do more classes this
>> year and I want my students to be able to do default installs of Sympy
>> - because I use it all the time and I want them to use it to - as I do
>> for the teaching notebooks.
>>
>> As a short thank you note, sympy has made a big difference to teaching
>> because it's made it so much easier to integrate symbolic mathematics
>> and numerical code.   So, for my teaching, I want installing sympy to
>> be as trivial and obvious as possible.  "Go to pypi, download
>> installer, run it".
>
> Well, you can't argue that if your top priority is to make things as
> easy as possible for your students, then "install Anaconda" is the
> simplest possible thing you can tell them, especially if you want to
> include more than just SymPy.

I want my students to leave with a system they will continue working
with and building on, so it is OK with me that this isn't one-click.

>> But - for the sake of the whole ecosystem - I want to avoid *having
>> to* depend on the monolithic installers.
>
> SymPy is the last thing that will have to depend on Anaconda, because
> it's pure Python, so building is not difficult. The "depending" is
> more of an issue for compiled packages, where building, especially on
> Windows, can be hugely painful.
>
> If the monolithicity is an issue for you, you can just install
> Miniconda (http://repo.continuum.io/miniconda/) and install just what
> you want.

It sounds like we have a way forward with the buildbot installer
builds then.  I'll get onto that very soon.

Cheers,

Matthew

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