2 files changed, 7 insertions, 31 deletions

diff --git a/Python/_warnings.c b/Python/_warnings.c
index 67f4c6b..add72e4 100644
--- a/Python/_warnings.c
+++ b/Python/_warnings.c
@@ -287,20 +287,15 @@ static int
 update_registry(PyObject *registry, PyObject *text, PyObject *category,
                 int add_zero)
 {
-    PyObject *altkey, *zero = NULL;
+    PyObject *altkey;
     int rc;
 
-    if (add_zero) {
-        zero = PyLong_FromLong(0);
-        if (zero == NULL)
-            return -1;
-        altkey = PyTuple_Pack(3, text, category, zero);
-    }
+    if (add_zero)
+        altkey = PyTuple_Pack(3, text, category, _PyLong_Zero);
     else
         altkey = PyTuple_Pack(2, text, category);
 
     rc = already_warned(registry, altkey, 1);
-    Py_XDECREF(zero);
     Py_XDECREF(altkey);
     return rc;
 }
@@ -1130,7 +1125,6 @@ create_filter(PyObject *category, const char *action)
     static PyObject *default_str = NULL;
     static PyObject *always_str = NULL;
     PyObject *action_obj = NULL;
-    PyObject *lineno, *result;
 
     if (!strcmp(action, "ignore")) {
         if (ignore_str == NULL) {
@@ -1169,12 +1163,7 @@ create_filter(PyObject *category, const char *action)
     }
 
     /* This assumes the line number is zero for now. */
-    lineno = PyLong_FromLong(0);
-    if (lineno == NULL)
-        return NULL;
-    result = PyTuple_Pack(5, action_obj, Py_None, category, Py_None, lineno);
-    Py_DECREF(lineno);
-    return result;
+    return PyTuple_Pack(5, action_obj, Py_None, category, Py_None, _PyLong_Zero);
 }
 
 static PyObject *
diff --git a/Python/compile.c b/Python/compile.c
index 064364e..b630863 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -561,7 +561,7 @@ compiler_enter_scope(struct compiler *c, identifier name,
     if (u->u_ste->ste_needs_class_closure) {
         /* Cook up an implicit __class__ cell. */
         _Py_IDENTIFIER(__class__);
-        PyObject *tuple, *name, *zero;
+        PyObject *tuple, *name;
         int res;
         assert(u->u_scope_type == COMPILER_SCOPE_CLASS);
         assert(PyDict_GET_SIZE(u->u_cellvars) == 0);
@@ -575,15 +575,8 @@ compiler_enter_scope(struct compiler *c, identifier name,
             compiler_unit_free(u);
             return 0;
         }
-        zero = PyLong_FromLong(0);
-        if (!zero) {
-            Py_DECREF(tuple);
-            compiler_unit_free(u);
-            return 0;
-        }
-        res = PyDict_SetItem(u->u_cellvars, tuple, zero);
+        res = PyDict_SetItem(u->u_cellvars, tuple, _PyLong_Zero);
         Py_DECREF(tuple);
-        Py_DECREF(zero);
         if (res < 0) {
             compiler_unit_free(u);
             return 0;
@@ -2596,14 +2589,8 @@ compiler_import(struct compiler *c, stmt_ty s)
     for (i = 0; i < n; i++) {
         alias_ty alias = (alias_ty)asdl_seq_GET(s->v.Import.names, i);
         int r;
-        PyObject *level;
 
-        level = PyLong_FromLong(0);
-        if (level == NULL)
-            return 0;
-
-        ADDOP_O(c, LOAD_CONST, level, consts);
-        Py_DECREF(level);
+        ADDOP_O(c, LOAD_CONST, _PyLong_Zero, consts);
         ADDOP_O(c, LOAD_CONST, Py_None, consts);
         ADDOP_NAME(c, IMPORT_NAME, alias->name, names);