[adoucette]

Did you ever find a solution for removing duplicates from multiple feeds in the same run? If so, is it re-usable code?
I've tried using the code adapted from the NewScientist below

...
    filterDuplicates = True
    url_list = []
...
    def print_version(self, url):
        if self.filterDuplicates:
            if url in self.url_list:
                return
        return url.replace('/article/', '/printarticle/')

but when I use it, I get an epub with just empty feeds...it takes out all the URLs