UnicodeDecodeError gbk codec cant decode byte 0xa7 in position 211 illegal multibyte sequence

This error occurs when trying to decode a string using the GBK codec, but the string contains a byte that cannot be decoded as a valid character in the GBK encoding. In this case, the byte in question is 0xa7, which is not a valid GBK character.

To fix this error, you can try using a different codec to decode the string, such as UTF-8 or Latin-1. Alternatively, you can try removing the offending byte from the string before decoding it.