Use _PyObject_CallMethodIdObjArgs()

Issue #28915: Replace _PyObject_CallMethodId() with
_PyObject_CallMethodIdObjArgs() in various modules when the format string was
only made of "O" formats, PyObject* arguments.

_PyObject_CallMethodIdObjArgs() avoids the creation of a temporary tuple and
doesn't have to parse a format string.

3 files changed, 6 insertions, 6 deletions

diff --git a/Modules/_pickle.c b/Modules/_pickle.c
index 78c206e..46ea276 100644
--- a/Modules/_pickle.c
+++ b/Modules/_pickle.c
@@ -4571,8 +4571,8 @@ find_class(UnpicklerObject *self, PyObject *module_name, PyObject *global_name)
 {
     _Py_IDENTIFIER(find_class);
 
-    return _PyObject_CallMethodId((PyObject *)self, &PyId_find_class, "OO",
-                                  module_name, global_name);
+    return _PyObject_CallMethodIdObjArgs((PyObject *)self, &PyId_find_class,
+                                         module_name, global_name, NULL);
 }
 
 static Py_ssize_t
@@ -5184,7 +5184,7 @@ instantiate(PyObject *cls, PyObject *args)
     else {
         _Py_IDENTIFIER(__new__);
 
-        result = _PyObject_CallMethodId(cls, &PyId___new__, "O", cls);
+        result = _PyObject_CallMethodIdObjArgs(cls, &PyId___new__, cls, NULL);
     }
     return result;
 }
diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index a68db18..f1469df 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -1445,7 +1445,7 @@ array_array_tofile(arrayobject *self, PyObject *f)
         bytes = PyBytes_FromStringAndSize(ptr, size);
         if (bytes == NULL)
             return NULL;
-        res = _PyObject_CallMethodId(f, &PyId_write, "O", bytes);
+        res = _PyObject_CallMethodIdObjArgs(f, &PyId_write, bytes, NULL);
         Py_DECREF(bytes);
         if (res == NULL)
             return NULL;
diff --git a/Modules/cjkcodecs/multibytecodec.c b/Modules/cjkcodecs/multibytecodec.c
index d1da189..15c8969 100644
--- a/Modules/cjkcodecs/multibytecodec.c
+++ b/Modules/cjkcodecs/multibytecodec.c
@@ -1611,7 +1611,7 @@ mbstreamwriter_iwrite(MultibyteStreamWriterObject *self,
     if (str == NULL)
         return -1;
 
-    wr = _PyObject_CallMethodId(self->stream, &PyId_write, "O", str);
+    wr = _PyObject_CallMethodIdObjArgs(self->stream, &PyId_write, str, NULL);
     Py_DECREF(str);
     if (wr == NULL)
         return -1;
@@ -1702,7 +1702,7 @@ _multibytecodec_MultibyteStreamWriter_reset_impl(MultibyteStreamWriterObject *se
     if (PyBytes_Size(pwrt) > 0) {
         PyObject *wr;
 
-        wr = _PyObject_CallMethodId(self->stream, &PyId_write, "O", pwrt);
+        wr = _PyObject_CallMethodIdObjArgs(self->stream, &PyId_write, pwrt);
         if (wr == NULL) {
             Py_DECREF(pwrt);
             return NULL;