On Thu, Aug 14, 2008 at 6:46 PM, Michael Tobis <[EMAIL PROTECTED]> wrote: > I wrote some code to test the precedence of getitem vs getattr; it > shows that getitem binds tighter. > > I have been handed some code that relies on the observed behavior. > However, the Nutshell precedence list claims the opposite. Is the > Nutshell wrong or am I missing something or is this a bug? > > class a(object): > def __getitem__(self,item): > return str(item)[:-1] > > class b(object): > def __getattr__(self,item): > return str(item)[::-1] > > Albert = a() > print Albert['abcd'] > # prints 'abc' > > Barney = b() > print Barney.abc > # print 'cba' > > print Barney.Albert['abcd'] > # raises TypeError; tries to evaluate 'treblA'['abcd'] > # I expected 'cba' based on Nutshell 2d Ed p 50
attribute access (foo.bar) binds more tightly than subscripting (foo[bar]). -- Read my blog! I depend on your acceptance of my opinion! I am interesting! http://techblog.ironfroggy.com/ Follow me if you're into that sort of thing: http://www.twitter.com/ironfroggy -- http://mail.python.org/mailman/listinfo/python-list
