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| -rw-r--r-- | Doc/reference/expressions.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst index 7fbfae7..6afc867 100644 --- a/Doc/reference/expressions.rst +++ b/Doc/reference/expressions.rst @@ -581,7 +581,7 @@ whose value is one of the keys of the mapping, and the subscription selects the value in the mapping that corresponds to that key. (The expression list is a tuple except if it has exactly one item.) -If the primary is a sequence, the expression (list) must evaluate to a plain +If the primary is a sequence, the expression list must evaluate to a plain integer. If this value is negative, the length of the sequence is added to it (so that, e.g., ``x[-1]`` selects the last item of ``x``.) The resulting value must be a nonnegative integer less than the number of items in the sequence, and |