On May 20, 2009, at 4:08 PM, Greg Ewing wrote:

> OUARDA MEHDI wrote:
>
>> class LinearConfigurationSpaceJoint(Joint):
> ...
>> cdef class RzRyRxJoint(LinearConfigurationSpaceJoint):
>
> Unless Cython has enhanced something here, you can't
> do that.

Nope, that would be quite the feat.

> At least in Pyrex, an extension type can
> only inherit from another built-in or extension
> type, not a Python class.
>
> Since you're defining the base class in Cython,
> there's no reason not to make it an extension type
> as well.

+1

- Robert

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