from calibre.web.feeds.news import BasicNewsRecipe

class AdvancedUserRecipe1282101454(BasicNewsRecipe):
    title = 'Popular Science'
    language = 'en'
    __author__ = 'Kovid Goyal'
    description = 'Popular Science'
    publisher = 'Popular Science'
    oldest_article = 7  # change this if you want more current articles. I like to go a week in
    max_articles_per_feed = 100
    no_stylesheets = True
    remove_javascript = True
    use_embedded_content = False

    feeds          = [

                      ('Gadgets', 'http://www.popsci.com/full-feed/gadgets'),
                      ('Cars', 'http://www.popsci.com/full-feed/cars'),
                      ('Science', 'http://www.popsci.com/full-feed/science'),
                      ('Technology', 'http://www.popsci.com/full-feed/technology'),
                      ('DIY', 'http://www.popsci.com/full-feed/diy'),

                    ]
    keep_only_tags = [
        dict(attrs={'class':lambda x: x and {'pane-node-header', 'pane-node-body'} & set(x.split())}),
    ]

    def preprocess_html(self, soup):
        for img in soup.findAll('img', attrs={'data-medsrc':True}):
            img['src'] = img['data-medsrc']
        return soup