[Python-Dev] RE: PEP-317

[Greg Ewing]

> (1) The syntax to catch multiple exceptions causes common mistakes
>     like this:
> 
>     try:
>         <some indexing operation>
>     except KeyError, IndexError:
>         <error handling>

If a keyword is added to the raise syntax for specifying a
traceback, the same thing should probably be done for catching
it as well, e.g.

  try:
    ...
  except SomeError traceback tb:
    ...

and then the above problem would go away:

    try:
        <some indexing operation>
    except KeyError, IndexError traceback tb:
        <error handling>

Greg Ewing, Computer Science Dept, +--------------------------------------+
University of Canterbury,	   | A citizen of NewZealandCorp, a	  |
Christchurch, New Zealand	   | wholly-owned subsidiary of USA Inc.  |
greg@cosc.canterbury.ac.nz	   +--------------------------------------+