Making safe file names

[Roy Smith]

In article <518b00a2$0$29997$c3e8da3$5496439d at news.astraweb.com>,
 Steven D'Aprano <steve+comp.lang.python at pearwood.info> wrote:

> > When somebody types in
> > "Blue Oyster Cult", they really mean "Blue Oyster Cult", 
> 
> Surely they really mean Blue Öyster Cult.

Yes.  The oomlaut was there when I typed it.  Who knows what happened to 
it by the time it hit the wire.