except_clause no except_item

[gilosh]

For the following code:

try:
  pass
except Exception as e:
  pass

...   except_clause )
        identifier )
        identifier )
        block ) ...

It would be helpful to have an 'except_item' similarly to 'with_item', helping distinguish between the identifiers:

    with_item )
      value: identifier )
      alias: identifier )

.. # suggestion
    except_item )
      value: identifier )
      alias: identifier )

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[maxbrunsfeld]

I think except_item isn't needed as clearly as with_item, because unlike with_item, there can only be one item in each except_clause.

I'm still open to this change though. Alternatively, should we just put a value and alias fields in except_clause?

[gilosh]

Right! I was under the wrong assumption you could have multiple exceptions (I should have double checked with the interpreter).

1. Would you say that this is a bug then?

try:
  pass
except RuntimeError, TypeError:
  pass

  try_statement [0, 0] - [3, 6])
...
    except_clause [2, 0] - [3, 6])
      identifier [2, 7] - [2, 19])
      identifier [2, 21] - [2, 30])
      block [3, 2] - [3, 6])
...

CPython

  File "<stdin>", line 3
    except RuntimeError, TypeError:

2. Your solution for adding the fields sounds perfect