Hi,

here's a new and improved patch series, on top of the python-tests 
branch.  It also needs python-cycler, which is currently only in 
master (cherry-picked commit included here for convenience).

some comments:

1) matplotlib-documentation/numpy-documentation: I decided not to use 
“(inherits ...)” because

  - it got messy for matplotlib, where I think the “python2-variant” 
of
    the base matplotlib package interfered when trying to
    (package-with-python2 matplotlib-documentation), and

  - all of the input fields need to be rewritten anyway (the
    documentation packages only need a number of native inputs).

2) Building the latex version of scipy's documentation now fails due 
to missing unicode characters and a lot of unescaped inline math 
formulas, which are upstream issues IMO (I'll submit an issue on 
their github page).

3)
From: Marius Bakke <mbakke@fastmail.com>
Date: Thu, 23 Feb 2017 14:21:30 +0100

>> +     (source
>> +      (origin
>> +        (method url-fetch)
>> +        (uri (string-append
>> +              "https://pypi.python.org/packages/ec/9c/"
>> +              
>> "368086faa9c016efce5da3e0e13ba392c9db79e3ab740b763fe28620b18b/"
>> +              "backports.shutil_get_terminal_size-" version 
>> ".tar.gz"))
>
> Is it possible to use 'pypi-uri' here?

I couldn't find a working pypi-uri, having tried all sorts of 
combinations of “backports.shutil-get-terminal-size” or 
“backports-shutil-get-terminal-size” (is there some sort of trick to 
find these? These simple urls are never listed on pypi, is my 
impression.).

4) I removed the patch related to the Matplotlib Tk backend, because 
it now seems to work just fine without it.  But maybe I misunderstand 
the reason the patch was there... comments?

cheers,

Thomas