[issue7550] PyLong_As* methods should not call nb_int.
Mark Dickinson dicki...@gmail.com added the comment: It turns out this is intimately bound up with the behaviour of PyArg_ParseTuple* for integer format codes. Since this behaviour can't change until Python 3.3 (because of the moratorium), I'm closing this for now. -- resolution: - later status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7550 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7550] PyLong_As* methods should not call nb_int.
New submission from Mark Dickinson dicki...@gmail.com: The following C-API functions: PyLong_AsLongAndOverflow PyLong_AsUnsignedLongMask PyLong_AsLongLong PyLong_AsUnsignedLongLongMask call nb_int for inputs that don't satisfy PyLong_Check. They thus accept floats, Decimal instances, etc. They should probably call nb_index instead (or perhaps accept only instances of int). The uses of these functions within the Python source should be checked, to see what consequences (if any) this change would have for Python semantics; it's possible that some of these consequences would fall under the moratorium (PEP 3003). In any case, this change probably requires a 1-release deprecation period. -- components: Interpreter Core messages: 96670 nosy: mark.dickinson severity: normal status: open title: PyLong_As* methods should not call nb_int. versions: Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7550 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7550] PyLong_As* methods should not call nb_int.
Mark Dickinson dicki...@gmail.com added the comment: Since PyLong_AsLong goes through PyLong_AsLongAndOverflow, this change would also affect calls to PyLong_AsLong. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7550 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7550] PyLong_As* methods should not call nb_int.
Mark Dickinson dicki...@gmail.com added the comment:
Just as an experiment, I removed the calls to nb_int and ran the test-
suite. The only test failures were in test_ctypes, test_getargs2, and
test_math.
The test_math failure was from math.factorial depending on PyLong_AsLong
to convert floats; I've fixed this in r76916 (trunk) and r76917 (py3k).
One consequence of not having PyLong_AsLong automatically call nb_int
would be that math.factorial(decimal.Decimal('-0.53')) is no longer valid.
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