In this article, we will explain some common data structures in python

tuple

tuple is a sequence of heterogenous objects. Once created, it cannot be updated (immutable)

• Create a tuple

a_tuple = (10, 20, "John", [5, 6], ("John", 56))

• Can be accessed using index

a_tuple[1]

• A tuple can be created from other iterables (e.g. list)

users = ["David", "John", "Peter"]
users_tuple = tuple(users)

set

• set is a collection of uniqure immutable objects.

Create a set

users = {"Peter", "David", "John"}

• To add an element

users.add("Kevin")

• To add multiple elements in one statement

users.update(["Rupert", "Kathy", "Adam"])

• To delete an element

users.remove("John")

dict

• dict is a hash map that stores items in key/value pairs.

ages = {"Joe": 32, "Peter": 21, "David": 33}

• To access with a key

ages['David']

• To iterate a dict

for k, v in ages.items()
    print('{k} -> {v}')