[Zope-Coders] unicode question

[Brian Lloyd]

> >    if type(names) in (types.StringType, types.UnicodeType):
> >        names=(names,)
> 
> No!
> 
> > Although, I'm sure using isinstance is better than comparing types.
> 
> Indeed.  Using isinstance is VERY important with an eye on migrating
> to new-style types/classes in Python 2.2: the argument could be a
> subclass of types.StringType, and then tests using "type(x) is T" or
> "type(x) in T" will fail.  The isinstance(x, T) test will succeed
> though.

I remembered that right after I hit "send" :( Bad, bad me. This is 
actually going to require a seek-and-destroy effort in Zope, as this 
no-no is used in a number of places.


> (I'm still thinking about whether to provide a common base for str and
> unicode; the more I see this kind of examples, the more I think there
> should be one.  But what to call it?  abstractstring?  String?  string?)

StringThing? :)


Brian Lloyd        brian@zope.com
Software Engineer  540.361.1716       
Zope Corporation   http://www.zope.com