Adding custom attributes to Django sitemaps framework

[Akshay Raj Gollahalli]

Hi,

I am not sure if this has been discussed before or not. I think adding a custom attribute to sitemap template would a nice thing to do. 

As of now the https://github.com/django/django/tree/stable/1.10.x/django/contrib/sitemaps/templates template has 

<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">

Only that, but if I want to add xmlns:image I have to create a custom sitemap template. Rather than doing that, something like https://docs.djangoproject.com/en/1.10/ref/contrib/syndication/#custom-feed-generators by defining custom attributes.

[Tim Graham]

I don't have a lot of experience with sitemaps so at least for me, it would be nice to see some proposed code changes to understand the idea a bit better. From my naive point of view, it looks like you need  a custom template to output <image:image> anyway?