Hello, Just found something rather misleading with negative indices:
s = [1,2,3,4,5,6,7,8,9] print s, s[-3], s[-4] # [1, 2, 3, 4, 5, 6, 7, 8, 9] 7 6 s.insert(-3, 0) print s, s[-3], s[-4] # [1, 2, 3, 4, 5, 6, 0, 7, 8, 9] 7 0 So, I did insert 0 at index -3, but s[-3] is still 7, & 0 is in fact at index -4. Well, this can be explained: insertion adds an index, there are now 10, so when counting backwards a given index does not point to the same position/item anymore than before insertion. Still, it's a bit disturbing. What do you think? (And: should insert behave so that 0 actually is at index -3, meaning insert it after 7?) (No issue with positive indices, indeed.) Denis ________________________________ la vita e estrany http://spir.wikidot.com/ _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
