Issue #14599: Support ImportError.path on AIX and HPUX when loading

extension modules.

Python/dynload_aix.c

@@ -108,6 +108,8 @@ aix_loaderror(const char *pathname)
 {
 
     char *message[1024], errbuf[1024];
+    PyObject *pathname_ob = NULL;
+    PyObject *errbuf_ob = NULL;
     register int i,j;
 
     struct errtab {
@@ -147,7 +149,11 @@ aix_loaderror(const char *pathname)
         ERRBUF_APPEND("\n");
     }
     errbuf[strlen(errbuf)-1] = '\0';            /* trim off last newline */
-    PyErr_SetString(PyExc_ImportError, errbuf);
+    pathname_ob = PyUnicode_FromString(pathname);
+    errbuf_ob = PyUnicode_FromString(errbuf);
+    PyErr_SetImportError(errbuf_ob, NULL, pathname);
+    Py_DECREF(pathname_ob);
+    Py_DECREF(errbuf_ob);
     return;
 }
 

Python/dynload_hpux.c

@@ -36,11 +36,21 @@ dl_funcptr _PyImport_GetDynLoadFunc(const char *shortname,
     /* XXX Chuck Blake once wrote that 0 should be BIND_NOSTART? */
     if (lib == NULL) {
         char buf[256];
+        PyObject *pathname_ob = NULL;
+        PyObject *buf_ob = NULL;
+        PyObject *shortname_ob = NULL;
+
         if (Py_VerboseFlag)
             perror(pathname);
         PyOS_snprintf(buf, sizeof(buf), "Failed to load %.200s",
                       pathname);
-        PyErr_SetString(PyExc_ImportError, buf);
+        buf_ob = PyUnicode_FromString(buf);
+        shortname_ob = PyUnicode_FromString(shortname);
+        pathname_ob = PyUnicode_FromString(pathname);
+        PyErr_SetImportError(buf_ob, shortname_ob, pathname_ob);
+        Py_DECREF(buf_ob);
+        Py_DECREF(shortname_ob);
+        Py_DECREF(pathname_ob);
         return NULL;
     }
     PyOS_snprintf(funcname, sizeof(funcname), FUNCNAME_PATTERN, shortname);