Added some python examples as a trivial bug fix

Author: donaldwasserman

demo.py

@@ -2,3 +2,12 @@
 
 for item in [1,2,3,4,5,6,'foo','bar','baz']:
     print('eh')
+
+
+class MyCustomClass(object):
+  arg = None
+  def __init__(arg):
+      self.arg = arg
+
+  def my_method(self):
+      return self.arg + 1