Re: py27-matplotlib graphics output?

[Havard Eidnes <he%uninett.no@localhost>]

>> ImportError: cannot import name _tkagg
>> [...] what do I need to do to fix this error?
>
> Install one of graphics/py-matplotlib-{gtk2,tk} to get the backend.

Thanks, that fixed it.  I thought it was a little non-obvious.
Perhaps some info available via pkg_info for py27-matplotlib
should point in the right direction?

Regards,

- Håvard