Simon Willison’s Weblog

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1 item tagged “multipleinheritance”

2008

Multiple inheritance of newforms and modelforms. 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.

# 12th April 2008, 12:54 pm / django, python, multipleinheritance, metaclasses, inheritance, newforms, modelforms