Python，转换4字节字符以避免MySQL错误“字符串值不正确：”

I need to convert (in Python) a 4-byte char into some other character. This is to insert it into my utf-8 mysql database without getting an error such as: "Incorrect string value: '\xF0\x9F\x94\x8E' for column 'line' at row 1"I need to convert (in Python) a 4-byte char int