Overriding base class methods in the C API

[Floris Bruynooghe]

Hello

I've been trying to figure out how to override methods of a class in
the C API. For Python code you can just redefine the method in your
subclass, but setting tp_methods on the type object does not seem to
have any influcence. Anyone know of a trick I am missing?

Cheers
Floris

 

[Gabriel Genellina]

En Sun, 18 Jan 2009 22:18:59 -0200, Floris Bruynooghe

I've been trying to figure out how to override methods of a class in
the C API. For Python code you can just redefine the method in your
subclass, but setting tp_methods on the type object does not seem to
have any influcence. Anyone know of a trick I am missing?

No tricks; you have to define the new type structure, probably including
tp_methods if you redefine any... (Ensure you create an object of the new
type, obviously)
See e.g. _collections.c how defaultdict inherits from dict.