Python List

In Python, a list is an ordered collection of items. Each item in a list has an assigned index value. Lists are one of the most commonly used data types in Python, and are very versatile. They can contain elements of different data types, including integers, strings, and even other lists. Lists are created using square brackets [ ] and the elements are separated by commas.

Here is an example of a list in Python:

fruits = ['apple', 'banana', 'orange', 'mango']

You can access the elements of a list using their index. Indexing in Python starts at 0, so the first element of a list has an index of 0, the second element has an index of 1, and so on. You can use the indexing operator [ ] to access an element of a list.

For example, to access the first element of the list fruits, you would use fruits[0]. This would return the value 'apple'.

You can also use negative indexing in Python, which counts backwards from the end of the list. For example, the index -1 refers to the last element of the list, -2 refers to the second last element, and so on. Using negative indexing, you can access the last element of the list fruits like this: fruits[-1]. This would return the value 'mango'.

You can also modify the elements of a list by assigning a new value to an element using the indexing operator. For example, you can change the second element of the list fruits like this:

fruits[1] = 'strawberry'

This would change the value of the second element from 'banana' to 'strawberry'.

There are many other operations you can perform on lists in Python, such as adding and removing elements, sorting the list, and more. Lists are a very useful data type in Python, and are used in many real-world applications.