Michael Hudson <mwh21@cam.ac.uk>:
The error message refers to "append", yet the operation in
question is "concat".
diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c
index 451e794..f89fa36 100644
--- a/Objects/tupleobject.c
+++ b/Objects/tupleobject.c
@@ -362,7 +362,7 @@
PyTupleObject *np;
if (!PyTuple_Check(bb)) {
PyErr_Format(PyExc_TypeError,
- "can only append tuple (not \"%.200s\") to tuple",
+ "can only concatenate tuple (not \"%.200s\") to tuple",
bb->ob_type->tp_name);
return NULL;
}