[Python-Dev] New hash algorithms: SHA3, SHAKE, BLAKE2, truncated SHA512

[Bernardo Sulzbach]

On 05/27/2016 07:52 PM, Nathaniel Smith wrote:
> If we demote them to second-class support (by making them only
 > available in some builds, or using a slow pure Python implementation),
 > then we'll be encouraging users to use inferior hashes. We shouldn't
 > do this without a very good reason.

I agree. And I really think we shouldn't even ship pure Python 
implementations of these hashing algorithms. I am fairly confident that 
these algorithms would be prohibitively slow if written in pure Python.