What to do with this error( 'str' does not support the buffer interface)?

Question

Python

There is the following program https://pastebin.com/b0msDk2g and it gives the error 'str' does not support the buffer interface. If it has something to do with byte strings and unicode strings, how do I fix it?

Answer 1

If you are using code for Python2, then either run it in Python2, or read how it differs from Python3.

if message != '':
    data = alias + ":" + message
    s.sendto(data.encode('utf-8'), server)