ValueError: multi-byte encodings are not supported

pyton解析xml時，報錯 是因為編碼的問題，把xml的頭 <?xml version="1.0" encoding="gb2312"?> 改成 <?xml version ...

String field contains invalid UTF-8 data when serializing a protocol buffer. Use the 'bytes' type if

[libprotobuf ERROR google/protobuf/wire_format.cc:1053] String field contains invalid UTF-8 data whe ...