2.2 features

Bill Janssen janssen at parc.xerox.com
Thu Aug 2 04:17:06 CEST 2001

> You may be right.  isinstance() and issubclass() are somewhat standard
> in other languages I believe, and hard to misunderstand.  The form
>   if x in list: ...
> looks a lot more confusing.  I may withdraw this idea.

I'd think again.  The problem with isinstance and issubclass is that I
can never remember the order of the arguments.  Something
non-symmetric like "x in type" is much clearer to me, to read and to


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