[Python-Dev] PEP 409 update [was: PEP 409 (original) (raw)

Guido van Rossum guido at python.org
Fri Feb 3 01:04:59 CET 2012

On Thu, Feb 2, 2012 at 3:41 PM, Nick Coghlan <ncoghlan at gmail.com> wrote:

On Fri, Feb 3, 2012 at 9:32 AM, Yury Selivanov <yselivanov.ml at gmail.com> wrote:

In my opinion using Ellipsis is just wrong.  It is completely non-obvious not only to a beginner, but even to an experienced python developer.  Writing 'raise Something() from None' looks less suspicious, but still strange. Beginners will never even see it (unless they're printing out cause explicitly for some unknown reason). Experienced devs can go read language reference or PEP 409 for the rationale (that's one of the reasons we have a PEP process).

I somehow have a feeling that Yury misread the PEP (or maybe my +1) as saying that the syntax for suppressing the context would be "raise from Ellipsis". That's not the case, it's "from None".

-- --Guido van Rossum (python.org/~guido)

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