Implement C API function PyCapsule_GetName.

Author: fangerer

graalpython/com.oracle.graal.python.cext/src/capsule.c

@@ -83,3 +83,9 @@ int PyCapsule_IsValid(PyObject *o, const char *name) {
     return o != NULL && UPCALL_CEXT_I(_jls_PyCapsule_IsValid, native_to_java(o), name ? polyglot_from_string(name, SRC_CS) : native_to_java(Py_None));
 }
 
+UPCALL_ID(PyCapsule_GetName);
+const char * PyCapsule_GetName(PyObject *o) {
+	return as_char_pointer(UPCALL_CEXT_O(_jls_PyCapsule_GetName, native_to_java(o)));
+}
+
+

graalpython/lib-graalpython/python_cext.py

@@ -821,6 +821,11 @@ def PyCapsule_IsValid(obj, name):
             obj.name == name)
 
 
+@may_raise
+def PyCapsule_GetName(obj):
+    return obj.name
+
+
 def PyModule_AddObject(m, k, v):
     m.__dict__[k] = v
     return None