Usage of Python 3 super()

Posted by deamon on Stack Overflow See other posts from Stack Overflow or by deamon
Published on 2010-05-05T09:23:11Z Indexed on 2010/05/05 13:38 UTC
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I wonder when to use what flavour of Python 3 super().

Help on class super in module builtins:

class super(object)
 |  super() -> same as super(__class__, <first argument>)
 |  super(type) -> unbound super object
 |  super(type, obj) -> bound super object; requires isinstance(obj, type)
 |  super(type, type2) -> bound super object; requires issubclass(type2, type)

Until now I've used super() only without arguments and it worked as expected (by a Java developer).


  • What does "bound" mean in this context?
  • What is the difference between bound and unbound super object?
  • When to use super(type, obj) and when super(type, type2)?
  • Would it be better to name the super class like in Mother.__init__(...)?

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