Python – Test if list is Palindrome

When it is required to test if a list is a palindrome, a method is defined that reverses the string and checks if it is equal to the original string. Based on the result, relevant message is displayed on the console. A list comprehension and the ‘join’ method are used.

Example

Below is a demonstration of the same

def check_palindrome_list(my_str): if my_str == my_str[::-1]: print("The list is a palindrome") else: print("The list isn't a palindrome") my_list = [77, 1, 56, 65, 1, 77] print("The list is :") print(my_list) my_list = ' '.join([str(elem) for elem in my_list]) check_palindrome_list(my_list)

Output

The list is : [77, 1, 56, 65, 1, 77] The list is a palindrome

Explanation

• A method named ‘check_palindrome_list’ is defined that takes a string as a parameter.

• The string is reversed and it is compared to the original string.

• Based on the result, relevant message is displayed on the console.

• Outside the method, a list is defined and is displayed on the console.

• It is iterated over and the ‘join’ method is used to join the elements and converted to a string.

• The method is called by passing the required parameter.

• The output is displayed on the console.