[Python-Dev] [Python-checkins] r64424 - in python/trunk:Include/object.h Lib/test/test_sys.py Misc/NEWSObjects/intobject.c Objects/longobject.c Objects/typeobject.cPython/bltinmodule.c

[Guido van Rossum]

Would you mind reading the rest of *this* thread on python-dev and
respond to the discussion about the design of the feature?

On Thu, Jun 26, 2008 at 4:24 AM, Raymond Hettinger <python at rcn.com> wrote:
> From: "Guido van Rossum" <guido at python.org>
>>
>> I don't care about the details of the patch until we have agreement
>> about which form the feature should take. We don't have that agreement
>> yet.
>
> Updated to the patch to address everyone's review comments:
>      http://bugs.python.org/file10742/float8.diff
>
> * Alexander Belopolsky requested exponential notation instead of potentially
> very long strings of bits.  Done
>
> * Alexander Belopolsky requested  true mathematical radix 2 representation
> of a float rather than its 64-bit memory layout.  Done
>
> * Antoine Pitrou requested that hex() and oct() be supported as well as
> bin().  Terry J. Reedy also requested support for hex(). Done.
>
> * Alexander Belopolsky and Alexandre Vassalotti requested that the output be
> a two-way street -- something that can be round-tripped through eval().
>  Done.
>
> * Amaury Forgeot d'Arc requested that the implementation not manipulate C
> strings inplace.  Fixed -- used  PyUnicode_FromFormat() instead.
>
> * Amaury Forgeot d'Arc requested that tests should check if negative numbers
> have the same representation as their absolute value. Done.
>
> * Mark Dickinson requested sign preserving output for bin(-0.0).  We
> couldn't find a clean way to do this without a special cased output format.
>
> * Mark Dickinson reviewed the NaN/Inf handling.  Done.
>
> * Eric Smith requested that the routine be attached to _PyFloat_to_base()
> instead of attaching to __bin__, __oct__, and __hex__. Done.
>
> * Guido requested that the docs be updated. Done.
>
> * Guido requested that the globally visible C API function name be prefixed
> with _Py.  Done.
>
> * Mark Dickinson requested normalizing output to start with a 1 so that
> nearby values have similar reprs.  Done.
>
>
> Raymond
>



-- 
--Guido van Rossum (home page: http://www.python.org/~guido/)