Difference between list, tuple, set, and dictionary in Python

This article is created to differentiate the four built-in data structures in Python that are used to store collections of data. The four built-in data structures that are differentiated here are:

1. list
2. tuple
3. set
4. dictionary

The table below distinguishes between the four built-in data structures in Python.

Lists are ordered sequences of elements that can be changed. This means that you can change, add, or remove items from a list after it has been made. Lists are made by putting a series of values separated by commas inside square brackets []. For instance:

my_list = [10, 20, "codes", "cracker"]

Tuples are like lists, but their values can't be changed once they're made. Tuples are made by putting a list of values separated by commas between parentheses (). For instance:

my_tuple = (10, 20, "codes", "cracker")

Unordered collections of distinct elements make up sets. This implies that every component of a set must be distinct. A comma-separated list of values is enclosed in curly braces to form sets. For instance:

my_set = {10, 20, "codes", "cracker"}

Dictionaries are collections of key-value pairs that are not ordered. A dictionary's keys must each uniquely correspond to a value. Curly braces are used to enclose key-value pairs in dictionaries, which are key-value pairs separated by commas. For instance:

my_dict = {"key1": "value1", "key2": "value2", "key3": "value3", "key4": "value4"}

Tuples and lists are both ordered sequences of elements, but tuples are immutable and lists are mutable. Dictionary entries are key-value pairs, while sets are unordered collections of distinct elements.

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