Fatest standard way to sum bytes (and their squares)?

[Erik Max Francis]

Alexander Schmolck wrote:

> Is this any faster?
> 
>  ordSum, orsSumSq = (lambda c:c.real,c.imag)(sum(complex(ord(x),ord(x)<<1) 
>                                                  for x in data))

That's pretty clever, but I neglected to mention that I need to 
accumulate the sums as ints/longs to avoid losing precision, so 
converting to floating point isn't an optional.  (The sums are 
normalized by the sizes of the files and expanded to 32 bits in order to 
maximize precision.)

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