bug#70653: [PATCH] Support source line location for Python ExceptionGroup

[kobarity]

Eli Zaretskii wrote:
> 
> > From: ". shynur" <one.last.kiss@outlook.com>
> > Date: Mon, 29 Apr 2024 16:24:10 +0000
> > msip_labels: 
> > 
> > (This patch is written for Inferior Python mode.)
> > 
> > The original behavior considered only the case of
> > single exception:
> > 
> > ```
> > Traceback (most recent call last):
> >   File "<string>", line 17, in __PYTHON_EL_eval
> >   File "c:/Users/shynur/Desktop/Python/a.py", line 1, in <module>
> >     raise Exception
> > Exception
> > ```
> > 
> > In the above example, one can click at the 3rd line to jump
> > to the corresponding source line.  This patch adds support
> > for the following case (i.e., the built-in ExceptionGroup):
> > 
> > ```
> > + Exception Group Traceback (most recent call last):
> >   |   File "<string>", line 17, in __PYTHON_EL_eval
> >   |   File "c:/Users/shynur/Desktop/Python/a.py", line 1, in <module>
> >   |     raise ExceptionGroup("", [Exception()])
> >   | ExceptionGroup:  (1 sub-exception)
> >   +-+---------------- 1 ----------------
> >     | Exception
> >     +------------------------------------
> > ```
> 
> Adding kobarity to the discussion.

It looks good to me.  Is it better to write NEWS since it is a change
of the customize variable?

Maybe we should also add ExceptionGroup as a Python keyword.  The
patch is attached.  Should I open a new bug?

0001-Add-ExceptionGroup-as-a-Python-keyword.patch
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