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List In Python

In this article, we will discuss the list in Python.

What Is The List?

A list is a collection of items of different or the same data type.

Variable_name = [item1, item2…..]

Consider the following example: -

classmates = ["Karan","sumit","amit”]
print(classmates)

If you run the above code, you will get the following output: -

Individual elements can be accessed using indexes. For example

classmates = ["Karan","sumit","amit"]
print (classmates[0])
print (classmates[1])
print (classmates[2])

The above program will return

You can change the value of the list by assigning the value to various indexes. Consider the following example: -

classmates = ["Karan","sumit","amit"]

print(classmates)

classmates[1] = "Tarun"

print(classmates)

In the above example, we are changing the value of the element at position 2. If you run the above code, you will get the following output.

You can create a list of multiple data types. For example

persondata = ["Karan" , 35, "India",12.5]

print(persondata)

If you run the above code, you will get the following output.

The nested list means a list inside the list. For example: -

[1,2,[3,4]]

To access that, python will use double bracket notation. Here is the code sample

nested_list = [1,2,[3,4]]
print("Element in nested list:", nested_list[2][0], " and ", nested_list[2][1])

Here is the output of the above code

Empty lists are those that do not contain any element. Here is an example: -

empty_list = []

print("Display empty list:", empty_list)

Here is the output of the above program: -

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