[Image-SIG] PIL and py2app

[Fredrik Lundh]

Bob Ippolito wrote:

> It'd have been a lot easier to track down this particular issue if
> the IOError given was the same one you get when doing open
> (nonExistentFile).. not sure if that's reasonable or not, though.

the driver uses the error string returned by the underlying library.  if not
else, this incident provides that it might be a good idea to add a bit more
information to the exception string (in this case, my code knows that I'm
trying to open a given file, so it could at least mention that...)

</F>