Provide __module__ attributes for functions defined in C and Python.
__module__ is the string name of the module the function was defined
in, just like __module__ of classes. In some cases, particularly for
C functions, the __module__ may be None.
Change PyCFunction_New() from a function to a macro, but keep an
unused copy of the function around so that we don't change the binary
API.
Change pickle's save_global() to use whichmodule() if __module__ is
None, but add the __module__ logic to whichmodule() since it might be
used outside of pickle.
diff --git a/Python/modsupport.c b/Python/modsupport.c
index bca3d6f..41e0c82 100644
--- a/Python/modsupport.c
+++ b/Python/modsupport.c
@@ -33,7 +33,7 @@
Py_InitModule4(char *name, PyMethodDef *methods, char *doc,
PyObject *passthrough, int module_api_version)
{
- PyObject *m, *d, *v;
+ PyObject *m, *d, *v, *n;
PyMethodDef *ml;
if (!Py_IsInitialized())
Py_FatalError("Interpreter not initialized (version mismatch?)");
@@ -46,6 +46,15 @@
if (PyErr_Warn(PyExc_RuntimeWarning, message))
return NULL;
}
+ /* Make sure name is fully qualified.
+
+ This is a bit of a hack: when the shared library is loaded,
+ the module name is "package.module", but the module calls
+ Py_InitModule*() with just "module" for the name. The shared
+ library loader squirrels away the true name of the module in
+ _Py_PackageContext, and Py_InitModule*() will substitute this
+ (if the name actually matches).
+ */
if (_Py_PackageContext != NULL) {
char *p = strrchr(_Py_PackageContext, '.');
if (p != NULL && strcmp(name, p+1) == 0) {
@@ -57,6 +66,9 @@
return NULL;
d = PyModule_GetDict(m);
if (methods != NULL) {
+ n = PyString_FromString(name);
+ if (n == NULL)
+ return NULL;
for (ml = methods; ml->ml_name != NULL; ml++) {
if ((ml->ml_flags & METH_CLASS) ||
(ml->ml_flags & METH_STATIC)) {
@@ -65,7 +77,7 @@
" METH_CLASS or METH_STATIC");
return NULL;
}
- v = PyCFunction_New(ml, passthrough);
+ v = PyCFunction_NewEx(ml, passthrough, n);
if (v == NULL)
return NULL;
if (PyDict_SetItemString(d, ml->ml_name, v) != 0) {