How to get rid of FutureWarning: hex/oct constants...

["Martin v. Löwis"]

Bengt Richter wrote:
>  >>> hex(-2*0x40000000+0x40047a80)
>  __main__:1: FutureWarning: hex()/oct() of negative int will return a signed string in Python 2.4
>   and up
>  '0xc0047a80'
> 
> That "signed string" is a unary minus expression using an absolute value forced by the inadequacy
> of the literal representation syntax.
> IOW, IMO '-' + hex_literal_of(abs(x)) is not a decent hex_literal_of(-x) !!

This has been discussed over and over, but since you bring it up again:

There are no hex literals for negative numbers, just as there are no
decimal literals for negative number. A literal, by nature, in any
base, is non-negative.

If you disagree: Is 0xFFF6 a positive or a negative number?

Regards,
Martin