Pseudo-element support to select an attribute directly

[mikegron]

Is there a way to select an attribute directly using a CSS selector?
For instance, Scrapy supports this using pseudo-elements: http://doc.scrapy.org/en/0.24/topics/selectors.html#using-selectors
You could have a CSS selector "a #myLink::href" to select the href directly. Is there another way to do it right now ?