[issue21288] hashlib.pbkdf2_hmac Hash Constructor

[Armin Ronacher]

Armin Ronacher added the comment:

This commit shows why the API is problematic: https://github.com/mitsuhiko/werkzeug/commit/c527dcbfb0ee621e9faa0a3a2873118438965800

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21288>
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