I realized after I fired off my response that this was still bugging me... it appears that the documentation is incorrect
from 2.1 Built-in Functions (v2.5 in case it matters... a quick search of bugs doesn't seem to show anything though) *reversed*( seq) Return a reverse iterator. seq must be an object which supports the sequence protocol (the __len__() method and the __getitem__()method with integer arguments starting at 0). New in version 2.4. the above appears to only be true for lists. For tuples and strings it creates a reverse OBJECT which behaves slightly differently (notably by not including a len() method as you noticed) I can't find how to actually create a "tuplereverseiterator" or "stringreverseiterator" objects... nor does there appear to be a way to create a "reversed" object from a list... Just tested this s = 'bob' t = (1,2,3,4) l = [1,2,3,4) rs = reversed(s) rt = reversed(t) rl = reversed(l) type(rs) <type 'reversed'> type(rt) <type 'reversed'> type(rl) <type 'listreverseiterator'> type(rs) == type(rt) True type(rs) == type(rl) False Surely this isn't intentional? -------- Haikus are easy Most make very little sense Refrigerator
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