On Sat, Sep 5, 2015 at 5:11 AM, Nick Coghlan <ncoghlan@gmail.com> wrote:

On 5 September 2015 at 13:04, Guido van Rossum <guido@python.org> wrote:
> I think it's too much effort for too little gain.
>
> The motivation feels very weak; surely writing
>
>   os.system("echo " + message_from_user)
>
> is just as easy (as is the %s spelling), so the security issue can hardly be
> blamed on PEP 498.

That's fair - writing PEP 501 actually made *me* a lot more
comfortable with PEP 498.

Rather than asking for a pronouncement, I've marked 501 as Deferred -
I still think it's potentially interesting, but I also think it's
worth taking our time and seeing how far we can get with just eager
rendering. If cases emerge where the lack of delayed rendering support
is keenly felt, then it isn't hard to resurrect a deferred PEP.