Guys, Some users enter their name in unicode (non ascii chars) - russian for example or french When using Python ESL in Python3 - I get this weird behavior. ESLevent already attempted to be returned as a unicode str, and damn Py3 attempts to unicode it before I can catch an exception in the ESL.py code and remove the non ascii chars or handle it another way. (python 2 have been just passing the bytes over) File "/home/anton/GIT/auth_server/ESL/ESL.py", line 78, in getHeader def getHeader(self, *args): return _ESL.ESLevent_getHeader(self, *args) UnicodeDecodeError: 'utf8' codec can't decode byte 0xef in position 1: invalid continuation byte While the data is ascii or unicode correct, all OK. Please help determine where I can tap in to have headers data to be cast as bytes before passed over to PythonLIB As ESL and other libs are automatically compiled using SWIG - I have no idea yet where to look at.