As shown in the figure below, showing bs4. FeatureNotFound: Couldn 't find a tree builder with the features you requested: HTML. Parsar. Do you need to install a parser library? And then watch a lot of posts, but the basic are involved LXML and html5lib, feeling and my situation is different, and BeautifulSoup I am successful installation, no error, want to seek advice have encountered the same friends,
is how to solve?