“Aplanar una lista 2D” Código de respuesta

Aplanar una lista 2D

# Python code to demonstrate
# converting 2d list into 1d list
# using list comprehension
 
# import chain
from itertools import chain
 
ini_list = [[1, 2, 3],
            [3, 6, 7],
            [7, 5, 4]]
             
# printing initial list
print ("initial list ", str(ini_list))
 
# converting 2d list into 1d
# using list comprehension
flatten_list = [j for sub in ini_list for j in sub]
 
# printing flatten_list
print ("final_result", str(flatten_list))