Thanks for the response. Given that this string that I am retrieving is actually the contents of a binary file then I should be OK to ignore anything to do with UTF8, given that my source code has no eight-bit or more characters.
Working from that I removed every reference to UTF8 subroutines from my code but I still get this wide character complaint when I try and write the string contents out to a binary (or any) file. So I have removed one potential issue (UTF8) but it's still got a problem.
While I take you at your word that this is not a UTF8 problem (as I understand it) It's odd that running encode('UTF-8'... against the string and writing the results out does not generate this wide character warning.
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