如何在python中更改字典格式？答案

【问题标题】：How to change dictionary format in python?如何在python中更改字典格式？
【发布时间】：2022-12-02 18:28:27
【问题描述】：

I need to transform dict { name : department } to { department : [ name ] } and print all names after transformation, but it prints me only one, what is wrong here?

Tried this, but it doesn\'t work as expected:

orig_dict = {\'Tom\': \'HR\', \'Ted\': \'IT\', \'Ken\': \\
             \'Marketing\', \'Jason\': \'Marketing\', \'Jesica\': \'IT\', \'Margo\': \'IT\', \'Margo\': \'HR\'}

new_dict = {value: [key] for key, value in orig_dict.items()}

it_names = new_dict[\'IT\']

print(it_names)

标签： python dictionary

【解决方案1】：