From ebc18abbf34ff248764bda1a02db7f1c783b71e3 Mon Sep 17 00:00:00 2001 From: Raymond Hettinger Date: Sun, 21 Jul 2024 00:53:26 -0500 Subject: [PATCH] gh-121977: Add tips for handling unhashable data (#122075) --- Doc/library/statistics.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Doc/library/statistics.rst b/Doc/library/statistics.rst index f7051ae2c80..614f5b905a4 100644 --- a/Doc/library/statistics.rst +++ b/Doc/library/statistics.rst @@ -485,6 +485,12 @@ However, for reading convenience, most of the examples show sorted sequences. >>> mode(["red", "blue", "blue", "red", "green", "red", "red"]) 'red' + Only hashable inputs are supported. To handle type :class:`set`, + consider casting to :class:`frozenset`. To handle type :class:`list`, + consider casting to :class:`tuple`. For mixed or nested inputs, consider + using this slower quadratic algorithm that only depends on equality tests: + ``max(data, key=data.count)``. + .. versionchanged:: 3.8 Now handles multimodal datasets by returning the first mode encountered. Formerly, it raised :exc:`StatisticsError` when more than one mode was