Scrapy deepcopy

Why write this post

The code:

def parse_category(self, response):
    flower = FlowerItem()
    root = response.css("div.zhiwuImg")
    for li in root.css("li"):
        flower["name"] = li.css("img").attrib['title']
        yield scrapy.Request(url=self.webroot+li.css("a:first-child::attr(href)").get(), meta={"item":flower}, callback=self.parse_detail)

def parse_detail(self, response):
    flower = response.meta['item']
    root = response.css("div.contentDiv")
    flower['firstletter'] = root.css("blockquote p::text").get()
    yield flower