Add constants

constants.py

@@ -0,0 +1,14 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+# vim:fenc=utf-8
+
+"""
+Constant values.
+"""
+
+from enum import Enum
+
+class AutoReplyAccountType(Enum):
+    SELF_OWNED_GZH = 1
+    EXTERNAL_GZH = 2
+    SELF_OWNED_QYWX = 3