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[Python-Dev] Deprecating builtin id (and moving it to sys())
Guido van Rossumgvanrossum at gmail.com
Sat Aug 20 18:02:25 CEST 2005
On 8/20/05, Anthony Baxter <anthony at interlink.com.au> wrote:> On Friday 19 August 2005 02:22, Guido van Rossum wrote:> > On 8/17/05, Anthony Baxter <anthony at interlink.com.au> wrote:> > > If you _really_ want to call a local variable 'id' you can (but> > > shouldn't).> >> > Disagreed. The built-in namespace is searched last for a reason -- the> > design is such that if you don't care for a particular built-in you> > don't need to know about it.>> I'm not sure what you're disagreeing with. Are you saying you _can't_ call> a variable 'id', or that it's OK to do this?That it's OK.> > > You also can't/shouldn't call a variable 'class', 'def', or 'len' -- but> > > I don't see any movement to allow these...> >> > Please don't propagate the confusion between reserved keywords and> > built-in names!>> It's not a matter of 'confusion', more that there are some names you can't> or shouldn't use in Python. When coding twisted, often the most obvious> 'short' name for a Deferred is 'def', but of course that doesn't work.My point is that there are two reasons for not using such a name. With'def', you *can't*. With 'len', you *could* (but it would be unwise).With 'id', IMO it's okay.-- --Guido van Rossum (home page:http://www.python.org/~guido/)
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