Letter replacer - suggestions?

[Chris Angelico]

On Tue, Dec 8, 2020 at 6:41 AM Grant Edwards <grant.b.edwards at gmail.com> wrote:
>
> On 2020-12-07, MRAB <python at mrabarnett.plus.com> wrote:
>
> > Avoid a 'bare' except unless you _really_ mean it, which is
> > virtually never. Catch only those exceptions that you're going to
> > handle.
>
> And sometimes "handling" is just printing some extra stuff and then
> re-raising the original exception:
>
>     try:
>         something():
>     except:
>         print(<whatever might be helpful for troubleshooting>)
>         raise
>

Even there, I'd most often use "except BaseException as e:", other
than in a very few situations. The only time I have recently used a
bare except is when making use of the traceback module:

try:
    ...
except:
    with open("notes.err", "a") as err:
        traceback.print_exc(file=err)
    raise

since print_exc() can go fetch the exception via sys.exc_info().

ChrisA