Hi Johnny,
I would also like to suggest directing the questions about the
topology course either to the course forum on edx, or course chat and
not to this mailing list.
Best,
Anton
On Tue, Nov 8, 2016 at 2:18 AM, Joseph Weston wrote:
> Hello,
>
>> I encounter problems with running the code in [1]. I guess it is not quite
>> related to kwant but caused by matplotlib and holoview. Since part of the
>> code relies on the function "spectrum", I appreciate any idea for tackling
>> the error, which is shown in the attached figure. Thanks.
>
> You are correct -- this issue is not related to Kwant. It appears that
> your holoviews installation is not set up to use Matplotlib as a
> backend. I would recommend googling, reading the docs, or posting in the
> holoviews gitter channel[1] (in that order).
>
> Regards,
>
> Joe
>
> [1]: https://gitter.im/ioam/holoviews
