[Python-Dev] Can Python implementations reject semantically invalid expressions?

[Greg Ewing]

Steven D'Aprano wrote:
> if the keyhole optimizer raised SyntaxError (or 
> some other exception) on seeing this:
> 
> def f():
>     return 1 + "1"

That might break code that was deliberately trying to raise
an exception. Sometimes you see things like

   try:
     1/0
   except Exception, e:
     ...

Usually this kind of thing is only done in test code or
illustrative snippets, but even so, it should work as
expected.

-- 
Greg