Issue #16431: Finally, consider all permutations.

1 files changed, 2 insertions, 2 deletions

diff --git a/Modules/_decimal/_decimal.c b/Modules/_decimal/_decimal.c
index 0e1d304..e951ded 100644
--- a/Modules/_decimal/_decimal.c
+++ b/Modules/_decimal/_decimal.c
@@ -2338,14 +2338,14 @@ PyDecType_FromFloat(PyTypeObject *type, PyObject *v,
     return dec;
 }
 
-/* Return a new PyDecObject (subtype) from a Decimal. */
+/* Return a new PyDecObject or a subtype from a Decimal. */
 static PyObject *
 PyDecType_FromDecimalExact(PyTypeObject *type, PyObject *v, PyObject *context)
 {
     PyObject *dec;
     uint32_t status = 0;
 
-    if (type == Py_TYPE(v)) {
+    if (type == &PyDec_Type && PyDec_CheckExact(v)) {
         Py_INCREF(v);
         return v;
     }