python3: Handle invalid global config keys

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

diff --git a/src/python-lxc/lxc.c b/src/python-lxc/lxc.c
index d436c284625448a1ebcaf32b2f8f4871b8ffb412..a8ab65b27cec67977f36f6bc2999f0604b1381f2 100644 (file)
--- a/src/python-lxc/lxc.c
+++ b/src/python-lxc/lxc.c
@@ -329,12 +329,20 @@ LXC_get_global_config_item(PyObject *self, PyObject *args, PyObject *kwds)
 {
     static char *kwlist[] = {"key", NULL};
     char* key = NULL;
+    const char* value = NULL;
 
     if (! PyArg_ParseTupleAndKeywords(args, kwds, "s|", kwlist,
                                       &key))
         return NULL;
 
-    return PyUnicode_FromString(lxc_get_global_config_item(key));
+    value = lxc_get_global_config_item(key);
+
+    if (!value) {
+        PyErr_SetString(PyExc_KeyError, "Invalid configuration key");
+        return NULL;
+    }
+
+    return PyUnicode_FromString(value);
 }
 
 static PyObject *