On Jun 20, 2017, at 1:08 PM, Michael Zingale <michael.zingale@stonybrook.edu> wrote:

this change sounds good to me.

On Tue, Jun 20, 2017 at 12:09 PM, Matthew Turk <matthewturk@gmail.com> wrote:

Hi Nathan,

Unexpectedly, I find myself in agreement with you. I think we should
ditch INST_CONDA=0, now that yt is able to be installed in a multitude
of ways, and now that the dependency stack is also much easier to
install.

This will also lighten the burden of maintenance that we put on
ourselves when we add optional or explicit dependencies.

-Matt

On Tue, Jun 20, 2017 at 11:04 AM, Nathan Goldbaum <nathan12343@gmail.com> wrote:
> Hi all,
>
> If anyone followed the e-mail thread on yt-users between me and Carla
> Bernhardt, they'd see that we had a lot of difficultly dealing with the
> INST_CONDA=0 option in the install script.
>
> This option reverts the install script to "legacy" mode, installing yt and
> all of yt's dependencies from source rather than using miniconda and conda
> packages to bootstrap a python environment.
>
> The problem is that the packages that get installed must be manually and
> laboriously updated. In practice this means packages are basically never
> updated. This also means the script installs relatively old versions of
> libraries (currently, matplotlib 1.5.1, numpy 1.11) simply because no one
> has taken the time to go through the list of libraries installed and update
> them. This means anyone who uses this option isn't benefiting from upstream
> bugfixes. It also means we risk bitrot.
>
> In practice, I don't think I've recently heard of a situation where
> INST_CONDA=1 failed but INST_CONDA=0 did not.
>
> The other option of course is for someone to step up and take responsibility
> for updating the INST_CONDA=0 section of the install script. I'd be happy to
> help out with that if anyone wants to volunteer.
>
> However, without a maintainer, I think we are doing our users a disservice
> by leaving this option available.
>
> If we *do* eliminate this option, we immediately reap the following
> benefits:
>
> * The install script can be trimmed down by several hundred lines
> * We can simplify the install-script based install instructions in the docs
> * It becomes easier to test modifications to the install script because
> there are fewer permutations to test.
>
> Please let me know what you think. I'd especially like to hear from people
> who are fans of INST_CONDA=0 or who recently used it with no issues.
>
> -Nathan
>

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--

Michael Zingale

Associate Professor

Dept. of Physics & Astronomy • Stony Brook University • Stony Brook, NY 11794-3800

phone: 631-632-8225

e-mail: Michael.Zingale@stonybrook.edu

web: http://www.astro.sunysb.edu/mzingale

github: http://github.com/zingale

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