[issue22264] Add wsgiref.util.fix_decoding

[Nick Coghlan]

Nick Coghlan added the comment:

Current cryptic incantation that requires deep knowledge of the encoding system to follow:

    data = data.encode("latin-1").decode("utf-8", "surrogateescape")

Replacement that is not only more self-documenting, but also gives you something specific to look up in order to learn more:

    data = wsgiref.util.fix_encoding(data, "utf-8")

As a WSGI server, the standard library code mostly does this in the other direction, converting data from its original web server provided encoding *to* latin-1.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22264>
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