Can't add attributes after 0.3
I have a few plugins that add an attribute to a page which I later on use.
The plugins load fine, but during the processing stage Python generates an error for each missing attribute (any that I added with my plugins). Here's what used to work in 0.2:
for post in site.get('posts', ): post['custom_sort_key'] = "this or that"
And then in some page or layout: