[issue30571] Add integer formatting code for fixed-width signed arithmetic (2's complement)

[Stefan Krah]

Stefan Krah added the comment:

To expand on what Mark said:  If the proposed format code implicitly
gives these results ...


>>> format(12 % 2**8, '08b')
'00001100'
>>> format(-12 % 2**8, '08b')
'11110100'

..., would students not expect that these two operations have the same
result?

>>> 0b11110100 | 0b00001100
252
>>> 
>>> -12 | 12
-4

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nosy: +skrah

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30571>
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