Issue #24731: Fixed crash on converting objects with special methods

__bytes__, __trunc__, and __float__ returning instances of subclasses of
bytes, int, and float to subclasses of bytes, int, and float correspondingly.

3 files changed, 6 insertions, 6 deletions

diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index 5768154..27f4069 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -2445,7 +2445,7 @@ bytes_methods[] = {
 };
 
 static PyObject *
-str_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds);
+bytes_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds);
 
 static PyObject *
 bytes_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
@@ -2460,7 +2460,7 @@ bytes_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
     _Py_IDENTIFIER(__bytes__);
 
     if (type != &PyBytes_Type)
-        return str_subtype_new(type, args, kwds);
+        return bytes_subtype_new(type, args, kwds);
     if (!PyArg_ParseTupleAndKeywords(args, kwds, "|Oss:bytes", kwlist, &x,
                                      &encoding, &errors))
         return NULL;
@@ -2687,7 +2687,7 @@ PyBytes_FromObject(PyObject *x)
 }
 
 static PyObject *
-str_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
+bytes_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 {
     PyObject *tmp, *pnew;
     Py_ssize_t n;
@@ -2696,7 +2696,7 @@ str_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
     tmp = bytes_new(&PyBytes_Type, args, kwds);
     if (tmp == NULL)
         return NULL;
-    assert(PyBytes_CheckExact(tmp));
+    assert(PyBytes_Check(tmp));
     n = PyBytes_GET_SIZE(tmp);
     pnew = type->tp_alloc(type, n);
     if (pnew != NULL) {
diff --git a/Objects/floatobject.c b/Objects/floatobject.c
index 9c1b714..acd88d6 100644
--- a/Objects/floatobject.c
+++ b/Objects/floatobject.c
@@ -1567,7 +1567,7 @@ float_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
     tmp = float_new(&PyFloat_Type, args, kwds);
     if (tmp == NULL)
         return NULL;
-    assert(PyFloat_CheckExact(tmp));
+    assert(PyFloat_Check(tmp));
     newobj = type->tp_alloc(type, 0);
     if (newobj == NULL) {
         Py_DECREF(tmp);
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 7036c0e..3a64b53 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -4405,7 +4405,7 @@ long_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
     tmp = (PyLongObject *)long_new(&PyLong_Type, args, kwds);
     if (tmp == NULL)
         return NULL;
-    assert(PyLong_CheckExact(tmp));
+    assert(PyLong_Check(tmp));
     n = Py_SIZE(tmp);
     if (n < 0)
         n = -n;