Link dialog sometimes won't open in admin interface

[athalean]

In some situations, trying to open /displayable_links.js generates a 500 with the following message:

TypeError at /displayable_links.js - unorderable types: dict() < dict()

https://github.com/stephenmcd/mezzanine/blob/master/mezzanine/core/views.py#L197

Replacing this line with e.g. return HttpResponse(dumps([link[1] for link in sorted(links, key=lambda link: link[1]['title'])])) fixes the problem.

I'm using Python 3.4, but this line of code looks unintended and shouldn't work on Python 2 either :-)

[AlexHill]

Thanks for the report. In order to match the function's comment I've made the sort key (link[0], link[1]['value']).

[AlexHill]

BTW it does "work" on Python 2 in the sense that no exception is raised, but I'm guessing the semantics are undefined given that this was removed in Python 3.

[stephenmcd]

Fixed in #1352