Scrapy route spider pseudo code

RouteSpider.py

class MySpider(RouteSpider):

    name = "example.com"

    def start_routes(self, response):
        for city in response.css('#location .dropdown-bg li'):
            yield Route(
                url=city.xpath('a/@href'),
                callback=self.parse_city,
            )

    def parse_city(self, response):
        router = response.router
        loader = router.loader

        loader.add_value('url', response.url)
        contact_url = response.xpath('li/a[contains(@href,"contact")]/@href')
        saleses_url = response.xpath('li/a[contains(@href,"sales")]/@href')

        # Add new routes
        router.add_hop(url=contact_url, callback=self.parse_contact)
        router.add_hop(url=saleses_url, callback=self.parse_sales)

    def parse_contact(self, response):
        loader = response.router.loader
        loader.add_xpath('contanct_email', 'p[1]/a[contains(@href,"mailto")]')

    def parse_sales(self, response):
        loader = response.router.loader
        loader.add_xpath('sales_email', 'p[1]/a[contains(@href,"mailto")]')

Now in https://github.com/stav/scrapy/blob/route-spider/scrapy/spiders/route.py