commit 3d258b1eb453bcbc412d6b252f5bdceae0303f07
author Serhiy Storchaka <storchaka@gmail.com> Sun Mar 19 21:06:29 2017 +0200
committer GitHub <noreply@github.com> Sun Mar 19 21:06:29 2017 +0200
tree df8f6687638c4b7bba9289abbf406d2c49c88577
parent da88596a19d2cad0e85a2b3c3290b5b1d97a793d

bpo-29116: Fix error messages for concatenating bytes and bytearray with unsupported type. (#709) (#723)

(cherry picked from commit 6b5a9ec4788770c652bac3bf5d5a0a3b710b82ae)

Objects/bytesobject.c

diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index 30c1a7e..c95a46d 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -1438,7 +1438,7 @@
     if (PyObject_GetBuffer(a, &va, PyBUF_SIMPLE) != 0 ||
         PyObject_GetBuffer(b, &vb, PyBUF_SIMPLE) != 0) {
         PyErr_Format(PyExc_TypeError, "can't concat %.100s to %.100s",
-                     Py_TYPE(a)->tp_name, Py_TYPE(b)->tp_name);
+                     Py_TYPE(b)->tp_name, Py_TYPE(a)->tp_name);
         goto done;
     }