Dear Python developers, The help(list) shows in a python console the following documentation string for the list.sort() method. sort(self, /, *, key=None, reverse=False) | Sort the list in ascending order and return None. | | The sort is in-place (i.e. the list itself is modified) and stable (i.e. the | order of two equal elements is **maintained**). Please notice the following inconsistency in Python3.10.0 and before of a sort(reverse=True) result:
L = [(1, 'a'), (2, 'b'), (1, 'c'), (2, 'd'), (3, 'e')] L.sort(reverse=True) L [(3, 'e'), (2, 'd'), (2, 'b'), (1, 'c'), (1, 'a')]
it should be:
L = [(1, 'a'), (2, 'b'), (1, 'c'), (2, 'd'), (3, 'e')] reverseTuplesSort(L) [(3, 'e'), (2, 'b'), (2, 'd'), (1, 'a'), (1, 'c')]
Same inconsistency appears when using a sorting key. Passing easily unnoticed may produce unexpected and potentially wrong ranking results. Best Regards, RB -- 50, Bvd G.-D. Charlotte L-1330 Luxembourg GD Luxembourg (Europe) (+352) 621 175 242