1. Introduction

This blog post will guide you through writing a Python program to reverse a given list. Reversing a list is a common operation in Python programming and can be done in various ways. This example will show one of the simplest methods to achieve this, enhancing our understanding of list manipulation.

2. Program Steps

1. Define a function that takes a list as its argument.

2. Use the reverse() method or slicing to reverse the list.

3. Return or print the reversed list.

3. Code Program


def reverse_list(input_list):
    # Step 2: Reverse the list using slicing
    reversed_list = input_list[::-1]

    # Step 3: Return the reversed list
    return reversed_list

# Step 1: Define a list
original_list = [1, 2, 3, 4, 5]
reversed_list = reverse_list(original_list)
print("Reversed List:", reversed_list)

Output:

For the original list [1, 2, 3, 4, 5], the output will be:
Reversed List: [5, 4, 3, 2, 1]

Explanation:

1. The function reverse_list takes a list input_list as input.

2. Inside the function, the list is reversed using slicing. The slice input_list[::-1] creates a new list that is a reversed version of input_list.

3. The reversed list is then returned. When the function is called with the list [1, 2, 3, 4, 5], it returns [5, 4, 3, 2, 1].

4. Another method to reverse a list is by using the reverse() method, which modifies the list in place. However, in this example, slicing is used as it creates a new reversed list without modifying the original list.

This program demonstrates a simple and effective way to reverse a list in Python, a common operation in data processing and manipulation.