test_getargs2 is failing on Windows x64:
test test_getargs2 failed -- Traceback (most recent call last):
File
"S:\buildbots\python.x64\3.0.nelson-win64\build\lib\test\test_getargs2.py",
line 190, in test_n
self.failUnlessEqual(99, getargs_n(Long()))
TypeError: 'Long' object cannot be interpreted as an integer
Drilling down into the source, this code arrives at
Python/getargs.c:convertsimple(). On Windows x64, SIZEOF_SIZE_T !=
SIZEOF_LONG, so there's a case 'n' statement that is defined that does the
following:
iobj = PyNumber_Index(arg);
I'm a little confused. At this point, arg is a PyObject *, and
arg->obj_type->tp_as_number->nb_int has a non-zero value. However,
PyNumber_Index(arg) performs two checks, and this object fails both, which
results in the TypeError being raised.
The first check is PyLong_Check(arg), which is handled via PyType_FastSubclass,
which ends up doing the following:
((arg->obj_type->tp_flags & Py_TPFLAGS_LONG_SUBCLASS) != 0)
tp_flags is 284160 at this point. Py_TPFLAGS_LONG_SUBCLASS is 16777216 and
Py_TPFLAGS_INT_SUBCLASS is 8388608, so this check fails. Why doesn't tp_flags
have either one of these values here? obj_type->nb_int has a value, so
shouldn't flags reflect the type?
I've just checked a 32-bit build and PyNumber_Index for a PyObject *
representing a literal 99 also exhibits the same behaviour as above.
Also, if we're a 32-bit build, the 'n' code path visits PyLong_AsLong(), which
calls PyLong_AsLongAndOverflow() -- the test cases calling getargs_n() test for
the overflow being raised correctly. Notionally, on x64 Windows where ((size_t
== long long) > long), shouldn't we have a PyLong_AsLongLongAndOverflow()
method?
Trent.
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