Building a Mapnik 3 backport for Debian stable

Bas Couwenberg sebastic at
Mon Jun 6 10:07:39 UTC 2016

On 2016-06-06 11:48, Sven Geggus wrote:
> Bas Couwenberg wrote:
>> Correct, python-mapnik has been split off into its own project, and 
>> got
>> its own source package because of that.
> Hm, python-mapnik gives me strange messages. This is not my backport 
> only
> but also your version which I ran in a stretch chroot:
> [...]
> /usr/lib/python2.7/dist-packages/mapnik/
> RuntimeWarning: to-Python converter for
> std::shared_ptr<mapnik::image_any> already registered; second
> conversion method ignored.
>   from ._mapnik import *
> Is this harmless?

It's just a warning, it hasn't cause bugreports or build failures, so 
I'm not to worried.

> Looks like this has already been reported upstream:

Let's see what comes out of that.

Kind Regards,


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