Recommendation to install packages for various OS

[AbdealiLoKo]

In setup.py L216 there is an error message which says which packages were not found while installing.
Would it be possible to suggest methods of installing these packages in some common Operating Systems ? Something like:

# A list of apt, brew, etc packages for various OS
# Example using freetype
pkg = 'freetype'
apt_pkg = 'libfreetype6-dev'
brew_pkg  'freetype'
win_pkg_url = 'http://gnuwin32.sourceforge.net/packages/freetype.htm'

if platform.system() == 'win32':
    print('Please check {0} for instructions to install {1}'
           .format(win_pkg_url, pkg))
elif platform.system() == 'darwin':
    print('Try installing {0} with `brew install {1}`'
          .format(pkg, brew_pkg))
elif platform.system() == 'Linux':
    distname, _, __ = platform.linux_distribution()
    if distname.lower() in ('ubuntu', 'debian'):
        print('Try installing {0} with `apt-get install {1}`'
              .format(pkg, apt_pkg))

This would be needed only for the required packages for which local copies are not provided.

A user found the error message - https://justpaste.it/v0if which was a bit confusing as it didn't suggest what to do. It'd be nice to give more helpful messages for people just starting python:

• Matplotlib version - 2.0.0b1
• Python version - 2.7.6
• Platform - Linux, Kubuntu 14.04.1
• Installation source - Using pip

[rathann]

Could you also mention Fedora (dnf install) and RHEL/CentOS/Scientific Linux (yum install)? I can provide the exact package names if necessary.

[tacaswell]

PRs to add this documentation is welcome.

[AbdealiLoKo]

Hey, a review on the PR I submitted would be helpful to know how I should edit and make it better so this can get merged before next point release

[WeatherGod]

Which PR is it? I don't see it at a quick glance.

On Wed, Jun 22, 2016 at 12:25 PM, AbdealiJK notifications@github.com
wrote:

Hey, a review on the PR I submitted would be helpful to know how I should
edit and make it better so this can get merged before next point release

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[AbdealiLoKo]

The PR is at #6575

[tacaswell]

@AbdealiJK Sorry we can be slow to get to reviews

[AbdealiLoKo]

@tacaswell No problem :) I completely understand this is opensource and volunteer time. Just wanted to give a polite reminder