Le 29/11/2017 à 19:02, Barry Warsaw a écrit : > On Nov 29, 2017, at 12:40, David Mertz <me...@gnosis.cx> wrote: > >> I think some syntax could be possible to only "catch" some exceptions and >> let others propagate. Maybe: >> >> val = name.strip()[4:].upper() except (AttributeError, KeyError): -1 >> >> I don't really like throwing a colon in an expression though. Perhaps some >> other word or symbol could work instead. How does this read: >> >> val = name.strip()[4:].upper() except -1 in (AttributeError, KeyError) > > I don’t know whether I like any of this <wink> but I think a more natural > spelling would be: > > val = name.strip()[4:].upper() except (AttributeError, KeyError) as -1 > > which could devolve into: > > val = name.strip()[4:].upper() except KeyError as -1 > > or: > > val = name.strip()[4:].upper() except KeyError # Implicit `as None` > > I would *not* add any spelling for an explicit bare-except equivalent. You > would have to write: > > val = name.strip()[4:].upper() except Exception as -1 > > Cheers, > -Barry >
I really like this one. It's way more general. I can see a use for IndexError as well (lists don't have the dict.get() method). Also I would prefer not to use "as" this way. In the context of an exception, "as" already binds the exception to a variable so it's confusing. What about: val = name.strip()[4:].upper() except Exception: -1 _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
