1 files changed, 35 insertions, 0 deletions
diff --git a/netmodel/util/deprecated.py b/netmodel/util/deprecated.py
new file mode 100644
index 00000000..faa80ac2
--- /dev/null
+++ b/netmodel/util/deprecated.py
@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2017 Cisco and/or its affiliates.
+#
+# 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 warnings
+import functools
+
+def deprecated(func):
+    """This is a decorator which can be used to mark functions
+    as deprecated. It will result in a warning being emmitted
+    when the function is used."""
+
+    @functools.wraps(func)
+    def new_func(*args, **kwargs):
+        #warnings.simplefilter('always', DeprecationWarning) 
+        warnings.warn("Call to deprecated function {}.".format(func.__name__),\
+                category=DeprecationWarning, stacklevel=2)
+        #warnings.simplefilter('default', DeprecationWarning) 
+        return func(*args, **kwargs)
+
+    return new_func