関連ワード:  python count of all elements in list    python count occurrences of all elements in list    python count of all items in list    python count of elements in list    get count of all elements in list python    python count occurrences of all items in list    python count occurrences of all items in list using for loop    python count occurrences of all items in list using dictionary    python count elements in list with condition    python count elements in list matching condition