1 files changed, 12 insertions, 6 deletions

diff --git a/Modules/_functoolsmodule.c b/Modules/_functoolsmodule.c
index ca61fcd..bc34c21 100644
--- a/Modules/_functoolsmodule.c
+++ b/Modules/_functoolsmodule.c
@@ -84,7 +84,7 @@ partial_new(PyTypeObject *type, PyObject *args, PyObject *kw)
     }
     Py_DECREF(nargs);
 
-    if (pkw == NULL || PyDict_Size(pkw) == 0) {
+    if (pkw == NULL || PyDict_GET_SIZE(pkw) == 0) {
         if (kw == NULL) {
             pto->kw = PyDict_New();
         }
@@ -155,7 +155,7 @@ partial_call(partialobject *pto, PyObject *args, PyObject *kw)
         assert(PyTuple_Check(argappl));
     }
 
-    if (PyDict_Size(pto->kw) == 0) {
+    if (PyDict_GET_SIZE(pto->kw) == 0) {
         kwappl = kw;
         Py_XINCREF(kwappl);
     }
@@ -709,11 +709,17 @@ lru_cache_make_key(PyObject *args, PyObject *kwds, int typed)
 
     /* short path, key will match args anyway, which is a tuple */
     if (!typed && !kwds) {
+        if (PyTuple_GET_SIZE(args) == 1) {
+            /* Save space and improve speed by unwrapping 1-tuples */
+            key = PyTuple_GET_ITEM(args, 0);
+            Py_INCREF(key);
+            return key;
+        }
         Py_INCREF(args);
         return args;
     }
 
-    kwds_size = kwds ? PyDict_Size(kwds) : 0;
+    kwds_size = kwds ? PyDict_GET_SIZE(kwds) : 0;
     assert(kwds_size >= 0);
 
     key_size = PyTuple_GET_SIZE(args);
@@ -920,7 +926,7 @@ bounded_lru_cache_wrapper(lru_cache_object *self, PyObject *args, PyObject *kwds
         }
         lru_cache_append_link(self, link);
         Py_INCREF(result); /* for return */
-        self->full = (PyDict_Size(self->cache) >= self->maxsize);
+        self->full = (PyDict_GET_SIZE(self->cache) >= self->maxsize);
     }
     self->misses++;
     return result;
@@ -1049,7 +1055,7 @@ lru_cache_cache_info(lru_cache_object *self, PyObject *unused)
 {
     return PyObject_CallFunction(self->cache_info_type, "nnOn",
                                  self->hits, self->misses, self->maxsize_O,
-                                 PyDict_Size(self->cache));
+                                 PyDict_GET_SIZE(self->cache));
 }
 
 static PyObject *
@@ -1233,7 +1239,7 @@ PyInit__functools(void)
     if (m == NULL)
         return NULL;
 
-    kwd_mark = PyObject_CallObject((PyObject *)&PyBaseObject_Type, NULL);
+    kwd_mark = _PyObject_CallNoArg((PyObject *)&PyBaseObject_Type);
     if (!kwd_mark) {
         Py_DECREF(m);
         return NULL;