Fix misspelling.
diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index b64178d..3f22e7c 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -818,7 +818,7 @@
 		    PyObject_IsInstance((PyObject*)b,
 					 (PyObject*)&PyUnicode_Type))) {
 			if (PyErr_WarnEx(PyExc_BytesWarning,
-				    "Comparsion between bytes and string", 1))
+				    "Comparison between bytes and string", 1))
 				return NULL;
 		}
 		result = Py_NotImplemented;