[Python-Dev] Need a way to test for 8-bit-or-unicode-string

[Guido van Rossum]

> > *** 1805,1810 ****
> > --- 1805,1829 ----
> >   	else if (PyType_Check(cls)) {
> >   		retval = PyObject_TypeCheck(inst, (PyTypeObject *)cls);
> >   	}
> > + 	else if (PySequence_Check(cls)) {
> > + 		int i, n;
> 
> Is is possible that a type also passes PySequence_Check?  If so, that
> could lead to confusing behavior.

The only way a type could pass PySequence_Check is if someone
subclasses 'type' and adds a __getitem__ method.  In that case, it's
appropriate that PyType_Check() has prevalence.  Also, adding
__getitem__ to a type seems to serve no purpose, so I'm not worried
about this (and yes, I had thought about this :-).

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