http://code.activestate.com/recipes/users/4178137/2011-05-27T23:52:28-07:00ActiveState Code Recipes2011-05-27T23:52:28-07:00Jeffrey Fischerhttp://code.activestate.com/recipes/users/4178137/http://code.activestate.com/recipes/577725-class-decorator-to-check-that-methods-are-implemen/

<p style="color: grey"> Python recipe 577725 by <a href="/recipes/users/4178137/">Jeffrey Fischer</a> (<a href="/recipes/tags/decorators/">decorators</a>). Revision 2. </p> <p>This decorator wraps the class's __init__ function to check that provided set of methods is present on the instantiated class. This is useful for avoiding inheritance in mix-in classes. We can inherit directly from object and still make it clear what methods we expect in other classes to be combined with the mix-in.</p> <p>Requires at least Python 2.6, which added class decorators.</p>