1 files changed, 42 insertions, 0 deletions
diff --git a/obsapi/null.py b/obsapi/null.py
new file mode 100644
index 0000000..bbfce6e
--- /dev/null
+++ b/obsapi/null.py
@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+"""
+    Null object
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    Simple implementation of the Null Object Pattern.
+    Taken from "Implementing the Null Object Pattern" recipe from
+    the Python CookBook.
+
+    :url:     https://www.safaribooksonline.com/library/view/python-cookbook/0596001673/ch05s24.html
+    :credit:  Dinu C. Gherman
+
+    :copyright: Copyright (c) 2012-2015 Scott Bahling, SUSE Linux GmbH
+    :license: GPL-2.0, see COPYING for details
+"""
+
+
+class Null:
+    """ Null objects always and reliably "do nothing." """
+
+    def __init__(self, *args, **kwargs):
+        pass
+
+    def __call__(self, *args, **kwargs):
+        return self
+
+    def __repr__(self):
+        return "Null(  )"
+
+    def __str__(self):
+        return ""
+
+    def __nonzero__(self):
+        return 0
+
+    def __getattr__(self, name):
+        return self
+
+    def __setattr__(self, name, value):
+        return self
+
+    def __delattr__(self, name):
+        return self