From b9d3dbe8446d5eb1f6fc23d00896340f35eab96f Mon Sep 17 00:00:00 2001
From: tengqm <tengqim@cn.ibm.com>
Date: Mon, 5 Jan 2015 09:15:26 +0800
Subject: [PATCH] Initial version

---
 senlinclient/exc.py | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 senlinclient/exc.py

diff --git a/senlinclient/exc.py b/senlinclient/exc.py
new file mode 100644
index 00000000..a1e7bb18
--- /dev/null
+++ b/senlinclient/exc.py
@@ -0,0 +1,25 @@
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+import sys
+
+
+class BaseException(Exception):
+    """An error occurred."""
+    def __init__(self, message=None):
+        self.message = message
+
+    def __str__(self):
+        return self.message or self.__class__.__doc__
+
+class CommandError(BaseException):
+    """Invalid usage of CLI."""