Python - Getting Organized: Data Structure Choices - dictionary, setdefault method - 計算機科学のブログ

Head First Python: A Learner’s Guide to the Fundamentals of Python Programming, A Brain-Friendly Guide、 Paul Barry(著)、 O’Reilly Mediaの Chapter 6.(Getting Organized: Data Structure Choices)、EXERCISE(315/682)の解答を求めてみる。 Jupyter(コード、入出力結果) OrganizingData.ipynb for filename in swim_files: name, *_ = swimclub.read_swim_data(filename=filename) swimmers.setdefault(name, []) swimmers[name].append(filename)