辞書型のメソッド - Qiita

>>> d = {'x': 10, 'y': 20} >>> d {'x': 10, 'y': 20} >>> d.keys() dict_keys(['x', 'y']) >>> d.values() dict_values([10, 20]) >>> d2 = {'x': 1000,'j': 500} >>> d.update(d2) >>> d {'x': 1000, 'y': 20, 'j': 500} >>> d.get('x') 1000 >>> d['z'] Traceback (most recent call last): File "<stdin>", line 1, in <module> KeyError: 'z' >>> d.get('z') >>> r=d.get('z') >>> r >>> type(r) <class 'NoneType'> >>> d.p