How do I add things to the end of the URL

[pheter]

Hey guys, just joined the forums!

I'm making a custom recipe, and was wondering how to add words/etc. to the end of the URL that Calibre gets the posts from. More specifically, I'm trying to add "&viewall=true" so that the gallery on Wired.com will show up as a normal post. The code I'm currently using but (obviously) is not working is this:

def remove_gallery(self, url):
    return url + '&viewall=true'

Any help would be greatly appreciated!

-Peter