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Showing content from http://mail.python.org/pipermail/python-dev/2002-August/027749.html below:

[Python-Dev] Deprecation warning on integer shifts and such

[Python-Dev] Deprecation warning on integer shifts and such [Python-Dev] Deprecation warning on integer shifts and suchGuido van Rossum guido@python.org
Tue, 13 Aug 2002 12:26:26 -0400
> > In what sense are longs not compatible to C integers? 
> 
> PyInt_Check() doesn't accept longs. PyInt_AS_LONG() returns
> garbage.

Since you were proposing a new type, I don't see how that matters.
(Making unsigned a subtype of int won't work.)

> > I'm frustrated that you apparently didn't read PEP 237 when it was
> > discussed in the first place.
> 
> I was on vacation at the time you discussed this and I
> had never expected that you are actually trying to force
> long usage instead of integer usage. My impression was that
> you were aiming at providing ways to be able to pass longs
> to integer aware APIs which is goodness.

PyInt_AsLong() and the 'i' and 'l' formats to PyArg_Parse* have
accepted longs for a long time.  The proper idiom is either to use
PyArg_Parse* with an 'i' or 'l' format, or to call PyInt_AsLong()
*without* first using PyInt_Check().

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



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