Check for descriptors (in C)

Gabriel Genellina gagsl-py2 at
Sun Jun 3 20:12:08 CEST 2007

For most types, there are macros like PyXxxx_Check and
PyXxxx_CheckExact. But not for descriptors, and I want to test if a
certain object is a descriptor or not. May I define
PyMethodDescr_Check, by example, along the lines of similar checks, or
the fact that they are not already defined implies that they should
not be tested that way?

My actual use case: I want to check if an object (instance of a class
that inherits from file) still uses the original write method or has
overriden it.

Gabriel Genellina

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