Error with matplotlib

[Andre Pany]

On Monday, 18 February 2019 at 19:24:52 UTC, Samir wrote:
> On Monday, 18 February 2019 at 18:27:17 UTC, Andre Pany wrote:
>> Therefore python needs to be installed and also 
>> matplotlib.pyplot.
>
> Hi Andre,
>
> I do have both python3 and matplotlib installed:
>
>  $ python3
>  Python 3.6.7 (default, Jan 10 2019, 01:15:48)
>  [GCC 4.2.1 Compatible FreeBSD Clang 6.0.0 
> (tags/RELEASE_600/final 326565)] on freebsd11
>  Type "help", "copyright", "credits" or "license" for more 
> information.
>  >>> matplotlib.__version__
>  '3.0.2'
>  >>> import matplotlib.pyplot
>  >>>
>
> Do I have an issue with the way my dub.json file is configured?
>  This is the first time I am using dub.  I also just copied and 
> pasted the code in app.d straight from the matplotlib-d package 
> page (http://code.dlang.org/packages/matplotlib-d).
>
> Thanks
> Samir

The issue is, the dub package is using python 2 (it executes 
application python) while you have installed matplotlib for 
Python 3 (application python3).

Kind regards
Andre