| Python: Dictionaries and The Smiths |

Creating a dictionary is as simple as placing items inside curly braces {} separated by comma.

An item has a key and the corresponding value expressed as a pair, key, and value. While values can be of any data type and can repeat, keys must be of immutable type (string, number or tuple with immutable elements) and must be unique. Dictionary are mutable. We can add new items or change the value of existing items using assignment operator.

The best way to learn new things is to take a practical approach of the things you want to learn. Here is a fragment of code that demonstrates the use of the dictionary statement in Python:

ƒ python command

family_dictionary = {'The_Smiths': ' - have a boy' , 'The_Nicholsons': ' - have a child as well'}

print(family_dictionary)

print(family_dictionary['The_Smiths'])

for Ralph, Robert in family_dictionary.items():

print(Ralph + Robert)

√ output

{'The_Smiths': ' - have a boy', 'The_Nicholsons': ' - have a child as well'}

- have a boy

The_Smiths - have a boy

The_Nicholsons - have a child as well