http://simonwillison.net/2008-04-12T12:54:51+00:00Simon Willison2008-04-12T12:54:51+00:002008-04-12T12:54:51+00:00https://simonwillison.net/2008/Apr/12/django/#atom-tag

<p><strong><a href="http://www.djangosnippets.org/snippets/703/">Multiple inheritance of newforms and modelforms</a></strong></p> If you ever see “Error when calling the metaclass bases metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases” when trying multiple inheritance with newforms and modelforms, here’s a scary solution I found. <p>Tags: <a href="https://simonwillison.net/tags/django">django</a>, <a href="https://simonwillison.net/tags/inheritance">inheritance</a>, <a href="https://simonwillison.net/tags/metaclasses">metaclasses</a>, <a href="https://simonwillison.net/tags/modelforms">modelforms</a>, <a href="https://simonwillison.net/tags/multipleinheritance">multipleinheritance</a>, <a href="https://simonwillison.net/tags/newforms">newforms</a>, <a href="https://simonwillison.net/tags/python">python</a></p>

2008-01-30T00:39:36+00:002008-01-30T00:39:36+00:00https://simonwillison.net/2008/Jan/30/monkeypatching/#atom-tag

<p><strong><a href="http://mail.python.org/pipermail/python-dev/2008-January/076194.html">Monkeypatching idioms - elegant or ugly?</a></strong></p> Guido offers a decorator and a metaclass as syntactic sugar for monkeypatching existing Python classes. <p>Tags: <a href="https://simonwillison.net/tags/decorators">decorators</a>, <a href="https://simonwillison.net/tags/guido-van-rossum">guido-van-rossum</a>, <a href="https://simonwillison.net/tags/idioms">idioms</a>, <a href="https://simonwillison.net/tags/metaclasses">metaclasses</a>, <a href="https://simonwillison.net/tags/monkeypatching">monkeypatching</a>, <a href="https://simonwillison.net/tags/python">python</a></p>

2006-12-17T00:42:09+00:002006-12-17T00:42:09+00:00https://simonwillison.net/2006/Dec/17/metaclasses/#atom-tag

<p><strong><a href="http://www.voidspace.org.uk/python/articles/metaclasses.shtml">Meta-classes Made Easy</a></strong></p> Fuzzyman introduces a metaclass factory for applying a decorator to every method of a class. <p>Tags: <a href="https://simonwillison.net/tags/decorators">decorators</a>, <a href="https://simonwillison.net/tags/fuzzyman">fuzzyman</a>, <a href="https://simonwillison.net/tags/metaclasses">metaclasses</a>, <a href="https://simonwillison.net/tags/python">python</a></p>