[Python-3000] bytes & Py_TPFLAGS_BASETYPE (original) (raw)

Guido van Rossum guido at python.org
Mon Sep 17 16:55:43 CEST 2007


On 9/16/07, Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:

Guido van Rossum wrote: > It is possible to compromise the integrity of a built-in type by > subclassing it if the type wasn't carefully written to expect > subclassing.

Disallowing subclassing in Python may make sense, but it seems unreasonable not to allow subclassing by consenting C code that is careful not to compromise any integrity. Maybe there should be two flags for this instead of just one?

AFAIK there's nothing stopping you from subclassing in C. I thought we were talking about Python though.

-- --Guido van Rossum (home page: http://www.python.org/~guido/)



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