{ "cells": [ { "cell_type": "code", "execution_count": 1, "metadata": {}, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "Original dictionary : {1: 2, 3: 4, 4: 3, 2: 1, 0: 0}\n", "Dictionary in ascending order by value : [(0, 0), (1, 2), (2, 1), (3, 4), (4, 3)]\n", "Dictionary in descending order by value : [(4, 3), (3, 4), (2, 1), (1, 2), (0, 0)]\n" ] } ], "source": [ "# Write a Python program to sort (ascending and descending) a dictionary by value.\n", "# Original dictionary : {0: 0, 1: 2, 2: 1, 3: 4, 4: 3} \n", "# Dictionary in ascending order by value : [(0, 0), (1, 2), (2, 1), (3, 4), (4, 3)] \n", "# Dictionary in descending order by value : [(4, 3), (3, 4), (2, 1), (1, 2), (0, 0)]\n", "\n", "import operator\n", "\n", "d = {1: 2, 3: 4, 4: 3, 2: 1, 0: 0}\n", "print('Original dictionary : ',d)\n", "sorted_d = sorted(d.items(), key=operator.itemgetter(0))\n", "print('Dictionary in ascending order by value : ',sorted_d)\n", "sorted_d = sorted(d.items(), key=operator.itemgetter(0),reverse=True)\n", "print('Dictionary in descending order by value : ',sorted_d)\n" ] } ], "metadata": { "kernelspec": { "display_name": "Python 3", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.6.1" } }, "nbformat": 4, "nbformat_minor": 2 }