https://trungnte.github.io/my-fcj-blog/python/03-dictionaries/index.html1. Overview Dictionaries provide a mechanism for storing data labelled with a keyword or other information. Use curly brackets to create a dictionary, and associate each piece of data with a label. Shell >>> a = {'mass': 17.3, 'length': 0.7} >>> print(a) {'mass': 17.3, 'length': 0.7} >>> type(a) <class 'dict'> Or another syntax Shell >>> b = dict(name='Trung', age=38) >>> print(b) {'name': 'Trung', 'age': 38} >>> type(b) <class 'dict'> 2. Some methods particular to dictionaries a.keys()Hugoen