[Python-Dev] Re-raise in absence of an "active" exception

[Phillip J. Eby]

At 11:15 AM 6/24/04 -0400, Jeremy Hylton wrote:
>On Mon, 2004-06-21 at 01:22, "Martin v. Löwis" wrote:
> > "If no exception is active in the current scope, an exception is raised
> > indicating this error."
> >
> > "This" error probably being "no active exception", not "exception must
> > not be NoneType".
>
>We can determine statically whether an exception would active in the
>current scope, right?  If the raise does not occur within an except
>handler, then there is no active exception in the current scope.  I
>think it should be a SyntaxError.

Wouldn't that break something like this:

     def errorHandler(value):
         if isinstance(value,SomethingInParticular):
             # do something
         else:
             raise

     try:
         # something
     except Exception,v:
         errorHandler(v)