BeautifulSoup4和 lxml 一样，Beautiful Soup 也是一个HTML/XML的解析器，主要的功能也是如何解析和提取 HTML/XML 数据。
with open('', 'r', encoding='utf-8') as f:
Soup = BeautifulSoup((), '')
titles = ('ul > li > -info > h3 > a')
for title in titles:
print()
BeautifulSoup详细教程
BeautifulSoup使用案例