Bug 623857

Description of problem:
Python 2.7 deprecated the PyCObject API in favor of a new "capsule" API.
  http://docs.python.org/dev/whatsnew/2.7.html#capsules

The deprecations are set to "ignore" by default, so in theory the API still works.

However the deprecation has caused at least one app to fail (virt-manager, see bug 620216, due to it modifying the warning settings), so I've been doublechecking the scope of usage of the PyCObject API, and am filing bugs against components that are possibly affected.

You can trigger a hard failure of the API via:
>>> import warnings
>>> warnings.filterwarnings('error')
>>> import numpy
python: /root/rpmbuild/BUILD/Python-2.7/Objects/dictobject.c:759: PyDict_SetItem: Assertion `value' failed.
Aborted

I'm not yet sure what the best approach is to fixing this, but this is a "heads up" to warn about changes to the default warning settings.  Not touching the default warning settings may be one workaround.

Version-Release number of selected component (if applicable):
numpy-1.4.1-6.fc14.src.rpm

Grepping through the source tree finds numerous uses of the API:
./numpy-1.4.1/doc/source/reference/arrays.interface.rst:200:   A :ctype:`PyCObject` whose :cdata:`voidptr` member contains a
./numpy-1.4.1/doc/source/reference/arrays.interface.rst:202:   for the structure is dynamically created and the :ctype:`PyCObject`
./numpy-1.4.1/doc/source/reference/arrays.interface.rst:242:   :ctype:`PyCObject` itself (do not confuse this with the "descr" member of
./numpy-1.4.1/doc/source/reference/arrays.interface.rst:246:   reference to the object when the :ctype:`PyCObject` is created using
./numpy-1.4.1/doc/source/reference/arrays.interface.rst:247:   :ctype:`PyCObject_FromVoidPtrAndDesc`.
./numpy-1.4.1/doc/source/reference/arrays.interface.rst:315:2. The desc member of the PyCObject returned from __array_struct__ was
./numpy-1.4.1/doc/source/reference/c-api.types-and-structures.rst:556:        wrapped in a :ctype:`PyCObject *` and keyed by the data-type number.
./numpy-1.4.1/doc/source/reference/c-api.types-and-structures.rst:1066:   :ctype:`PyCObject` that contains a pointer to a :ctype:`PyArrayInterface`
./numpy-1.4.1/numpy/numarray/_capi.c:3356:    c_api_object = PyCObject_FromVoidPtr((void *)libnumarray_API, NULL);
./numpy-1.4.1/numpy/numarray/numpy/libnumarray.h:50:          if (c_api_object && PyCObject_Check(c_api_object)) {              \
./numpy-1.4.1/numpy/numarray/numpy/libnumarray.h:51:            libnumarray_API = (void **)PyCObject_AsVoidPtr(c_api_object);      \
./numpy-1.4.1/numpy/core/code_generators/generate_numpy_api.py:57:  if (PyCObject_Check(c_api)) {
./numpy-1.4.1/numpy/core/code_generators/generate_numpy_api.py:58:      PyArray_API = (void **)PyCObject_AsVoidPtr(c_api);
./numpy-1.4.1/numpy/core/code_generators/generate_ufunc_api.py:47:  if (PyCObject_Check(c_api)) {
./numpy-1.4.1/numpy/core/code_generators/generate_ufunc_api.py:48:      PyUFunc_API = (void **)PyCObject_AsVoidPtr(c_api);
./numpy-1.4.1/numpy/core/src/umath/ufunc_object.c:370:    funcdata = (PyUFunc_Loop1d *)PyCObject_AsVoidPtr(obj);
./numpy-1.4.1/numpy/core/src/umath/ufunc_object.c:515:        funcdata = (PyUFunc_Loop1d *)PyCObject_AsVoidPtr(obj);
./numpy-1.4.1/numpy/core/src/umath/ufunc_object.c:3926:        cobj = PyCObject_FromVoidPtr((void *)funcdata, _loop1d_list_free);
./numpy-1.4.1/numpy/core/src/umath/ufunc_object.c:3944:        current = (PyUFunc_Loop1d *)PyCObject_AsVoidPtr(cobj);
./numpy-1.4.1/numpy/core/src/umath/umathmodule.c.src:271:    c_api = PyCObject_FromVoidPtr((void *)PyUFunc_API, NULL);
./numpy-1.4.1/numpy/core/src/multiarray/multiarraymodule.c:2942:    c_api = PyCObject_FromVoidPtr((void *)PyArray_API, NULL);
./numpy-1.4.1/numpy/core/src/multiarray/convert_datatype.c:103:            if (PyCObject_Check(cobj)) {
./numpy-1.4.1/numpy/core/src/multiarray/convert_datatype.c:104:                castfunc = PyCObject_AsVoidPtr(cobj);
./numpy-1.4.1/numpy/core/src/multiarray/scalartypes.c.src:756:    return PyCObject_FromVoidPtrAndDesc(inter, arr, gentype_struct_free);
./numpy-1.4.1/numpy/core/src/multiarray/getset.c:548:    return PyCObject_FromVoidPtrAndDesc(inter, self, gentype_struct_free);
./numpy-1.4.1/numpy/core/src/multiarray/common.c:213:        if (PyCObject_Check(ip)) {
./numpy-1.4.1/numpy/core/src/multiarray/common.c:214:            inter=(PyArrayInterface *)PyCObject_AsVoidPtr(ip);
./numpy-1.4.1/numpy/core/src/multiarray/usertypes.c:207:    cobj = PyCObject_FromVoidPtr((void *)castfunc, NULL);
./numpy-1.4.1/numpy/core/src/multiarray/ctors.c:1107:        if (PyCObject_Check(e)) {
./numpy-1.4.1/numpy/core/src/multiarray/ctors.c:1109:            inter = (PyArrayInterface *)PyCObject_AsVoidPtr(e);
./numpy-1.4.1/numpy/core/src/multiarray/ctors.c:1530:            if PyCObject_Check(func) {
./numpy-1.4.1/numpy/core/src/multiarray/ctors.c:1533:                cfunc = PyCObject_AsVoidPtr(func);
./numpy-1.4.1/numpy/core/src/multiarray/ctors.c:1968:    if (!PyCObject_Check(attr)) {
./numpy-1.4.1/numpy/core/src/multiarray/ctors.c:1971:    inter = PyCObject_AsVoidPtr(attr);
./numpy-1.4.1/numpy/core/include/numpy/ndarrayobject.h:576:#define PyDataType_GetDatetimeMetaData(descr) ((descr->metadata == NULL) ? NULL : ((PyArray_DatetimeMetaData *)(PyCObject_AsVoidPtr(PyDict_GetItemString(descr->metadata, NPY_METADATA_DTSTR)))))
./numpy-1.4.1/numpy/core/include/numpy/ndarrayobject.h:1209:   PyCObject attribute of an array __array_struct__. See
./numpy-1.4.1/numpy/f2py/src/fortranobject.c:232:        PyObject *cobj = PyCObject_FromVoidPtr((void *)(fp->defs[0].data),NULL);
./numpy-1.4.1/numpy/f2py/cb_rules.py:64:\tif (PyCObject_Check(#name#_capi)) {
./numpy-1.4.1/numpy/f2py/cb_rules.py:66:\t#name#_cptr = PyCObject_AsVoidPtr(#name#_capi);
./numpy-1.4.1/numpy/f2py/cfuncs.py:1002:\t\telse if (PyCObject_Check(fun)) {
./numpy-1.4.1/numpy/f2py/rules.py:395:      PyObject_SetAttrString(o,"_cpointer", PyCObject_FromVoidPtr((void*)#F_FUNC#(#name_lower#,#NAME#),NULL));
./numpy-1.4.1/numpy/f2py/rules.py:689:if(PyCObject_Check(#varname#_capi)) {
./numpy-1.4.1/numpy/f2py/rules.py:690:  #varname#_cptr = PyCObject_AsVoidPtr(#varname#_capi);
./numpy-1.4.1/numpy/lib/type_check.py:621:    func = ctypes.pythonapi.PyCObject_AsVoidPtr
./numpy-1.4.1/numpy/random/mtrand/Python.pxi:34:    int PyCObject_Check(object p)
./numpy-1.4.1/numpy/random/mtrand/Python.pxi:35:    object PyCObject_FromVoidPtr(void* cobj, destructor1 destr)
./numpy-1.4.1/numpy/random/mtrand/Python.pxi:36:    object PyCObject_FromVoidPtrAndDesc(void* cobj, void* desc, 
./numpy-1.4.1/numpy/random/mtrand/Python.pxi:38:    void* PyCObject_AsVoidPtr(object self)
./numpy-1.4.1/numpy/random/mtrand/Python.pxi:39:    void* PyCObject_GetDesc(object self)
./numpy-1.4.1/numpy/random/mtrand/Python.pxi:40:    int PyCObject_SetVoidPtr(object self, void* cobj)  
./numpy-1.4.1/numpy/random/mtrand/mtrand.c:244:#define __Pyx_ImportRefcountAPI(name)   (__Pyx_RefnannyAPIStruct *) PyCObject_Import((char *)name, (char *)"RefnannyAPI")