Python | Split string in groups of n consecutive characters

Given a string (be it either string of numbers or characters), write a Python program to split the string by every n^th character. 

Examples: 

Input : str = "Geeksforgeeks", n = 3
Output : ['Gee', 'ksf', 'org', 'eek', 's']

Input : str = "1234567891234567", n = 4
Output : [1234, 5678, 9123, 4567]

Method #1: Using list comprehension 

Method #2: Using zip_longest 

['123G', 'eeks', 'ForG', 'eeks', '4567']

Method 3: Using a for loop and string slicing.

• Initialize an empty list to store the substrings.
• Define the splitting point, i.e., n=3.
• Create a for loop to iterate over the string.
• In each iteration, append the substring to the list using string slicing.
• Print the output list.

['Gee', 'ksf', 'org', 'eek', 's']

Time complexity: O(n), where n is the length of the input string. 
Auxiliary space: O(n), as we are storing each substring in a list.