arbitrary long integer aritmetics

[Fredrik Lundh]

Andrew Bennetts wrote:

> I also note that your Python 2.2 does arithmetic differently to mine:
>
> $ python2.2
> Python 2.2.2 [etc etc]
> >>> 2147483647 * 2147483647 * 2147483647
> 9903520300447984150353281023L

file my example under "cut and paste errors".

</F>