Re: matplotlib broken

[Federico Beffa]

address@hidden (Ludovic Courtès) writes:

> I don’t know if I’m missing something, but when I type ‘matplotlib’ at
> the prompt, I get:
>
> /gnu/store/g4m8q73cq4lym3v1ag7pnk5zv49mdifs-python-matplotlib-1.4.2/lib/python3.4/site-packages/matplotlib-1.4.2-py3.4-linux-x86_64.egg/matplotlib/backends/backend_gtk3.py
>  in <module>()
>      19 except ValueError:
>      20     raise ImportError(
> ---> 21         "Gtk3 backend requires the GObject introspection bindings for 
> Gtk 3 "
>      22         "to be installed.")
>      23
>
> ImportError: Gtk3 backend requires the GObject introspection bindings for Gtk 
> 3 to be installed.
>
> This may well be related to <http://bugs.gnu.org/20765>: Because Guix
> has incomplete dependency information, it might GC some of the things
> that these eggs refer to, and so things may or may not work depending on
> whether they have been GC’d.

To solve this error I think you need to set
export GI_TYPELIB_PATH="$HOME/.guix-profile/lib/girepository-1.0"
We should probably add a search path specification for that.

For me it does display a window as expected, but it doesn't show the
curve (line in this case).

Thanks.
Fede