[Python-Dev] Deprecating string exceptions (original) (raw)

Guido van Rossum guido@python.org
Fri, 05 Apr 2002 19🔞19 -0500

I didn't read most of this length thread the first time through, but I did run into the bug today in my own code and tried to fix it. I added a patch to 518846 that allows instances of new style classes, where the check is implemented by checking PyTPFLAGSHEAPTYPE, which is only defined for objects created by class statements (I think).

This doesn't seem to cause any change in the behavior of string-based exceptions. I don't think it's necessary to have "except str:" catch string-based exceptions, because they're supported solely for backwards compatibility. There was also some discussion of making exceptions inherit from Exception, but I think that's a separate issue. Any reason not to commit the patch?

In how many places have you posted about this issue? This is the third place where I see you trying to get people's attention. What's the urgency? :-)

I don't think the patch is ready yet, see my comment on SF. If we decide that anything needs to be done in this area I want to look at it first, so please don't check anything in yet.

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