default object comparison considered harmful?

[castironpi]

On May 16, 9:10 am, castironpi <castiro... at gmail.com> wrote:
> On May 16, 8:35 am, castironpi <castiro... at gmail.com> wrote:
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> > On May 16, 8:18 am, castironpi <castiro... at gmail.com> wrote:
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> > > On May 16, 7:23 am, Bruno Desthuilliers <bruno.
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> > > 42.desthuilli... at websiteburo.invalid> wrote:
> > > > Kay Schluehr a écrit :
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> > > > > On 16 Mai, 10:03, "A.T.Hofkamp" <h... at se-162.se.wtb.tue.nl> wrote:
> > > > >> Hello all,
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> > > > >> Yesterday we found the cause of a bug that has caused problems for a long time.
> > > > >> It appeared to be the following:
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> > > > >> class A(object):
> > > > >>     pass
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> > > > >> print min(1.0, A())
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> > > > >> which is accepted by Python even though the A() object is not numerical in
> > > > >> nature.
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> > > > >> The cause of this behavior seems to be the compare operation of the object
> > > > >> class.
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> > > > >> Is there a way to disable this behavior in Python (other than deriving a new
> > > > >> 'object-like' class that doesn't do comparisons?)
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> > > > > Are you sure you don't want to use a statically typed language that
> > > > > captures all type errors just by inspecting your source code?
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> > > > This is not necessarily a static vs dynamic typing problem. The
> > > > following code will raise a TypeError for very good reasons:
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> > > >     print 1.0 + A()- Hide quoted text -
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> > > > - Show quoted text -
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> > > I question the real-world examples of coercion, casting, and
> > > upcasting.  C insists that defining by operator, which may or may not
> > > relate to system, is the only legal move.  I doubt operator+ is well-
> > > defined on non-ideal structures.  Rationals are not floats, but system
> > > got checked.  Define concurrency.- Hide quoted text -
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> > > - Show quoted text -
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> > I would be bouncing localcy and remoticy.  What word's on the bar?- Hide quoted text -
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> > - Show quoted text -
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> Can you suffixize words?  I have corner, cornercy, lunacy, emphatic,
> emphasize, a value of Y, orderings, say, remoticy, & cross.  Come do
> graphics.  Anybody speak?
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> For verbs, I have: say, speak, see, talk, and stack.  Pretty
> harmless.  Still here?- Hide quoted text -
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> - Show quoted text -

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