> On Fri, Apr 16, 2010 at 2:11 PM, Raymond Hettinger > <raymond.hettin...@gmail.com> wrote: >> >>>> Guido van Rossum, 16.04.2010 16:33: >>>>> >>>>> I am fine with >>>>> declaring dict({}, **{1:3}) illegal, since after all it is abuse of >>>>> the ** mechanism. >> >> ISTM that making it illegal costs cycles with giving any real benefit. > > Diasagree. The real benefit is better cross-implementation portability.
Would hate for 100% of users will pay a performance penalty when most applications aren't abusing keyword dictionaries so they already work cross-platfrom. Isn't there anyway to make this a one-time check instead of a PyLint style validation check running on every invocation of a function or method using **kwds? Or perhaps there can be a switch or flag to enable developers to check for non-standard uses of **kwds. That way, they can clean-up their programs but not make the end users pay for the checks every time they run an application that has already been cleaned-up. Raymond _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com