Soup.find（）在第二次迭代时返回None * only *

Question

我试图在Python中使用BeautifulSoup进行webscrape，并且代码的第一次迭代运行正常：将值分配给article_name和article_name_new。但是，在第二次迭代时，soup.find（）返回None，所以当我打印（article_name_new）时，我得到None，即使执行的代码完全相同。任何人都可以指出我可能非常明显的错误吗？

def getNews():
    global my_nintendo_news_updated
    global article_name
    global quote_page
    global page
    global soup

    print(article_name)

    if my_nintendo_news_updated == False:
        article_name_new = soup.find( href=re.compile('https://mynintendonews.com/2018/'))
        print(article_name_new)
        if article_name_new != article_name:
            print('My Nintendo News has been updated')
            my_nintendo_news_updated = True
            print(article_name)
            print(article_name_new)
            B.configure(image = my_nintendo_news_icon)
            article_name = article_name_new
        else:
            print('My Nintendo News has not been updated')

    soup = BeautifulSoup(page, 'html.parser')
    top.after(5000, getNews)