[issue6874] sequence method .count() and .index() shoud be in immutable sequence method list.

Terry J. Reedy added the comment: This is covered in point 4 of open issue #4966 -- nosy: +tjreedy resolution: -> duplicate status: open -> closed ___ Python tracker ___ ___

[issue6874] sequence method .count() and .index() shoud be in immutable sequence method list.

New submission from s7v7nislands : In document 6.6.4. Mutable Sequence Types says: The following operations are defined on mutable sequence types: s.count(x) return number of i‘s for which s[i] == x s.index(x[, i[, j]])return smallest k such that s[k] == x and i <= k < j (4)