[ckan-discuss] Extension license

[Ian Ward]

On Fri, Jul 12, 2013 at 3:38 PM, Stéphane Guidoin <stephane at opennorth.ca> wrote:
> Hello,
>
> Short question about license: So CKAN is using AGPL. But does the AGPL also
> applies to extension that I would build from scratch? Or can I use any
> license I want on my extension? Even proprietary license?
>
> From what I've seen, the CKAN extension build by the Gov of Canada uses MIT
> (https://github.com/open-data/ckanext-canada/blob/master/COPYING) so it
> sounds like I set any license on the extension, but I wanted to check.

Hello Stéphane,

IANAL but my expectation is that you can only use licenses that are
compatible with the AGPL (such as MIT), and the combination ends up
being covered by the AGPL requirements. For a proprietary license you
would need permission from the CKAN authors.

It would be great if someone from OKFN would chime in here, of course!

Ian
(still not a lawyer)