Re: [matplotlib-devel] MEP11: Attempting to deal with the Python library dependency issue

[Chris B. <chr...@no...>]

On Wed, Oct 3, 2012 at 2:08 PM, Christoph Gohlke <cg...@uc...> wrote:

A bunch of great stuff:

+1 all around

Another use-case is py2exe, py2app, and friends -- at the moment, you
pretty much have to include the whole dang MPL package to get things
to work. Cleaning up some of these dependencies could improve that.

-Chris


> On 10/3/2012 9:20 AM, Michael Droettboom wrote:
>> I invite comments for a new MEP about improving the situation with
>> respect to our bundling of third-party Python dependencies.
>>
>> In particular, I'd love feedback from the various stakeholders -- those
>> producing binary installers and packages for the various platforms.
>>
>> https://github.com/matplotlib/matplotlib/wiki/MEP11
>>
>> Mike
>
> Hi,
>
> could dateutil, pytz, and pyparsing be made optional dependencies? I
> just tried, all of my own scripts do work without them being installed
> (one line needed to be removed in axes.py
> https://github.com/matplotlib/matplotlib/blob/master/lib/matplotlib/axes.py#L19).
> Only about 10 of matplotlib's examples fail (after some additional
> changes).
>
> Frankly, I would remove/unbundle all 3rd party Python packages from
> matplotlib and declare them as dependencies for pip and easy_install,
> and of course in the documentation.
>
> I think that matplotlib, the library, should not attempt to work around
> Python's distribution/packaging limitations. Please do not use
> post-install or run-time scripts to detect and install missing
> dependencies.
>
> Concerning end user experience, the scipy-stack project seems like a
> better place to address this.
>
> Optionally, for Windows users that won't touch pip or easy_install (like
> me), matplotlib could provide separate downloads of installers for
> dateutil, pytz, pyparsing, and six. They are trivial to create.
>
> It is also easy to create EGGs or MSIs for matplotlib, which are
> occasionally requested.
>
> Also consider a separate package for the matplotlib tests, which would
> include 35 MB of baseline images that are of little use to end users.
>
> Christoph
>
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