[issue19619] Blacklist base64, hex, ... codecs from bytes.decode() and str.encode()

[Nick Coghlan]

Nick Coghlan added the comment:

Attached is a proof of concept for the blacklist approach (for 3.4, but without the fixes needed for the transform codec handling tests in test_codecs)

This does have the potential to add a reasonable amount of additional overhead to encoding and decoding for shortstrings. Since it isn't obvious where to store a set for faster checking against the blacklist, it may be worth benchmarking this naive approach before doing something more complicated.

Regardless, I don't plan to take this further myself any time soon - I just wanted to give it a firm nudge in the direction of the blacklist approach by providing a proof of concept.

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keywords: +patch
Added file: http://bugs.python.org/file32702/issue19619_blacklist_proof_of_concept.diff

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