Christian Heimes added the comment:
I have checked in some of the basic and non-controversal parts of the PEP
(optimization, expose type object). The ABCs are still missing. In order to
cope with keyed and non-keyed CHF I have added a common base class for both and
separate ABCs for keyed and non-keyed CHF. They are really different beasts but
they provide a common API except for they constructor.
class AbstractCryptoHashFunction(metaclass=_abc.ABCMeta):
"""Common ABC for keyed and non-keyed cryptographic hash functions"""
class CryptoHashFunction(AbstractCryptoHashFunction):
"""Abstract base class for cryptographic hash functions (PEP 247)"""
class KeyedCryptoHashFunction(AbstractCryptoHashFunction):
"""Abstract base class for keyed cryptographic hashs function (PEP 247)"""
----------
Added file: http://bugs.python.org/file32302/hashlib_abc4.patch
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<http://bugs.python.org/issue18742>
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