I am using Python 2.7.5.  The segment of code from inspect that I previously extracted came from line 332 although you may also find it by "finding" _searchbases.

This is really an issue with Forthon:

http://hifweb.lbl.gov/Forthon/

Specifically the Forthon class, which I think is older than current standards.  If you guys want this Forthon class to flag an error (I can work around that too), than the proposed fix I sent can be rejected, and this ticket can be closed.  I just wanted to bring this case to you attention just in case.

Thanks again,

Brandon

Quoting "R. David Murray" <report@bugs.python.org>:

>
> R. David Murray added the comment:
>
> Which version of python are you running?  I can't match that 
> traceback up to the code in the current 2.7 inspect module.
>
> That said, the same issue probably exists in the current code.  A 2.7 
> class is expected to have either an __mro__ or a __bases__ attribute, 
> and if it has neither inspect probably *should* throw an error, since 
> it can't know what to do with the class.  The error could be clearer, 
> though.
>
> But, let's see what others think.
>
> ----------
> nosy: +r.david.murray
>
> _______________________________________
> Python tracker <report@bugs.python.org>
> <http://bugs.python.org/issue25884>
> _______________________________________
>