[issue23467] Improve byte formatting compatibility between Py2 and Py3

[STINNER Victor]

STINNER Victor added the comment:

"As far as bytes formatting supports the %s code (an alias to %b) purely for compatibility with Python 2, it would be good to support the %r as an alias to %a."

I don't like this idea.

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nosy: +haypo

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue23467>
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