hashing strings to integers

[Adam Funk]

On 2014-05-23, Adam Funk wrote:

> On 2014-05-22, Peter Otten wrote:

>> In Python 3 there's int.from_bytes()
>>
>>>>> h = hashlib.sha1(b"Hello world")
>>>>> int.from_bytes(h.digest(), "little")
>> 538059071683667711846616050503420899184350089339
>
> Excellent, thanks for pointing that out.  I've just recently started
> using Python 3 instead of 2, & appreciate pointers to new things like
> that.

BTW, I just tested that & it should be "big" for consistency with the
hexdigest:

Python 3.3.2+ (default, Feb 28 2014, 00:52:16) 
[GCC 4.8.1] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import hashlib
>>> h0 = hashlib.sha1(bytes('pants', 'UTF-8')).digest()
>>> h1 = hashlib.sha1(bytes('pants', 'UTF-8')).hexdigest()
>>> int.from_bytes(h0, 'big')
1315090007003469710610607131160586168131917298749
>>> int.from_bytes(h0, 'little')
352462323236431222976527983157432783788229548774
>>> int(h1, 16)
1315090007003469710610607131160586168131917298749

Thanks.


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