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As an aside, I've requested similar functionality be added
to the struct module, which handles signed, unsigned,
big-endian, little-endian, and integers of arbitrary length.
 The request is available here:
https://sourceforge.net/tracker/?func=detail&atid=355470&aid=1023290&group_id=5470

Would you prefer two functions that live as methods of ints
and longs, or would you prefer the functionality be placed
inside of the struct module (which already does numeric
packing and upacking), and had its own type code?