Reviewers: , Message: Thanks to Mariatta for the patch, which addresses the issue, so I think it can be applied to the Python 3 and 2 documentation. One point, I do not know when the start and stop arguments were added to list.count (or if they always existed). I have only tested them in Python2.7 and Python3.5. Please review this at http://bugs.python.org/review/28587/ Affected files: Doc/tutorial/datastructures.rst diff -r 0c8ffa562f3a Doc/tutorial/datastructures.rst --- a/Doc/tutorial/datastructures.rst Wed Nov 02 12:13:48 2016 +0200 +++ b/Doc/tutorial/datastructures.rst Wed Nov 02 06:04:14 2016 -0700 @@ -60,11 +60,12 @@ Remove all items from the list. Equivalent to ``del a[:]``. -.. method:: list.index(x) +.. method:: list.index(x[, start[, end]]) :noindex: Return the index in the list of the first item whose value is *x*. It is an - error if there is no such item. + error if there is no such item. Optional arguments ``start`` and ``end`` + are interpreted as in slice notation. .. method:: list.count(x) @@ -101,8 +102,8 @@ >>> a.append(333) >>> a [66.25, 333, -1, 333, 1, 1234.5, 333] - >>> a.index(333) - 1 + >>> a.index(333, 2) + 3 >>> a.remove(333) >>> a [66.25, -1, 333, 1, 1234.5, 333]