Hi! I was receiving the exact same error, did some research and I discovered that in python 3.9.0 HTMLParser.unescape was removed, so I switched back to python 3.8 and it is working perfectly fine.

How to use the html parser? the html parser implement using HTMLParser class from python and then generate the python etree. tag Selects all child elements with the given tag. For example, spam ...

Now many applications need to analyze various detail contents of web pages. How to extract web information quickly and effectively becomes very important. Web information is primarily expressed by ...