Best way to convert sequence of bytes to long integer

[Paul Rubin]

Steven D'Aprano <steve at REMOVE-THIS-cybersource.com.au> writes:
> s = "g%$f yg\n1\05"
> Is this the best way, or have I missed some standard library function?

It is really a shame that there is not a standard library function
for this.  I usually do it using hexadecimal conversion:

  d = int(s.encode('hex'), 16)