[Python-3000] PEP 31XX: A Type Hierarchy for Numbers (and other algebraic entities)
jimjjewett at gmail.com
Thu Apr 26 00:48:13 CEST 2007
On 4/25/07, Guido van Rossum <guido at python.org> wrote:
> ... If we insist that built-in types are immutable ... They
> could write things like
> class MyFloat(float, DivisionRing): pass
> but this would be fairly painful.
Worse than that once you get 3rd parties involved.
from gmpy import mpf
class mpf(object): pass
class MyFloat(float, DivisionRing, gmpy): pass
# err ... will this even work at all, with two concrete types?
> On 4/25/07, Jeffrey Yasskin <jyasskin at gmail.com> wrote:
> > will seeing "Ring"
> > in a list of superclasses be enough to confuse people?
Yes. That is part of the problem with twisted -- there are so many
layers of abstraction that it takes a while to find something. If
users ever see "Ring" outside of a footnote or the advanced math
section, then something went wrong.
More information about the Python-3000