From a5df45a92e724fe68bcedf96f142ddf262df8f0d Mon Sep 17 00:00:00 2001
From: Richard Shin <shin.richard@gmail.com>
Date: Sat, 3 Sep 2016 18:10:03 -0700
Subject: [PATCH] Describe the object which wasn't serializable (#404)

---
 src/raylib.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/raylib.cc b/src/raylib.cc
index 74e6aa959..b5adee611 100644
--- a/src/raylib.cc
+++ b/src/raylib.cc
@@ -362,7 +362,10 @@ int serialize(PyObject* worker_capsule, PyObject* val, Obj* obj, std::vector<Obj
     }
     Py_DECREF(array); // TODO(rkn): is this right?
   } else {
-    PyErr_SetString(RayError, "serialization: type not know");
+    std::stringstream ss;
+    ss << "serialization: type of " << PyString_AS_STRING(PyObject_Repr(val))
+       << " not recognized";
+    PyErr_SetString(RayError, ss.str().c_str());
     return -1;
   }
   return 0;