'gbk' codec can't decode byte 0x83 in position 77: illegal multibyte sequence

This error message indicates that a byte sequence in the input data cannot be decoded by the 'gbk' codec, because it contains an illegal multibyte sequence. The byte sequence in question is located at position 77 in the input data.

To resolve this error, you may need to check the source of the input data and ensure that it is encoded correctly. You may also want to try using a different codec, such as UTF-8, which is more widely supported and can handle a wider range of characters. Additionally, you may want to consider using a library or tool that can automatically detect and handle different character encodings, such as chardet or BeautifulSoup.