Python | Ways to join pair of elements in list
Given a list, the task is to join a pair of elements of the list. Given below are a few methods to solve the given task.
Method #1: Using zip() method
# Python code to demonstrate # how to join pair of elements of list # Initialising listini_list = ['a', 'b', 'c', 'd', 'e', 'f'] # Printing initial list print ("Initial list", str(ini_list)) # Pairing the elements of listsres = [i + j for i, j in zip(ini_list[::2], ini_list[1::2])] # Printing final resultprint ("Result", str(res)) |
Output:
Initial list ['a', 'b', 'c', 'd', 'e', 'f'] Result ['ab', 'cd', 'ef']
Method #2: Using list comprehension and next and iters
# Python code to demonstrate # how to join pair of elements of list # Initialising listini_list = iter(['a', 'b', 'c', 'd', 'e', 'f']) # Pairing the elements of listsres = [h + next(ini_list, '') for h in ini_list] # Printing final resultprint ("Result", str(res)) |
Output:
Result ['ab', 'cd', 'ef']
Method #3: Using list comprehension
# Python code to demonstrate # how to join pair of elements of list # Initialising listini_list = ['a', 'b', 'c', 'd', 'e', 'f'] # Printing initial listsprint ("Initial list", str(ini_list)) # Pairing the elements of listsres = [ini_list[i] + ini_list[i + 1] for i in range(0, len(ini_list), 2)] # Printing final resultprint ("Result", str(res)) |
Output:
Initial list ['a', 'b', 'c', 'd', 'e', 'f'] Result ['ab', 'cd', 'ef']
Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.
To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning – Basic Level Course
