1. Python
  2. Python | Convert list of lists to list of strings

Python | Convert list of lists to list of strings

Method # 1: Using List Comprehension + join()
A combination of the above functions can be used to accomplish this task. In this we are doing the task of iterating using a list comprehension and join () is used to perform the task of joining a string to a list of strings.

# Python3 code to demonstrate how it works
# Convert list of lists to list of strings
# using list comprehension + join ()

 
# initialize the list

test_list = [[[ "g" , "f" , "g" ], [ "i" , "s" ], [ "b" , "e" , "s" , "t" ]]

 
# print the original list

print ( "The original list:" + str (test_list))

 
# Convert list of lists to list of strings
# using a list comprehension + join ()

res = [`` .join (ele) for ele in test_list]

  
# print result

print ( "The String of list is:" + str (res))

Output: 

 The original list: [[`g`,` f`, `g`], [` i`, `s`], [` b`, `e`,` s`, `t`]] The String of list is: [` gfg`, `is`,` best `]

Method # 2: Using map () + join ()
The above task can also be done with using a combination of the above methods. In this we accomplish the task of transforming using join and iteration using map ().

# Python3 code to demonstrate how it works
# Convert list of lists to list of strings
# using map () + join ()

 
# initialize the list

test_list = [[ "g" , " f " , " g " ], [ "i" , "s" ], [ "b" , "e" , "s" , "t" ]]

 
# print original list

print ( "The original list:" + str (test_list))

 
# Convert list of lists to list of strings
# using map () + join ()

res = list ( map (`` .join, test_list))

 
# print result

print ( "The String of list is: " + str (res))

Output: 

 The original list: [[ `g`,` f`, `g`], [` i`, `s`], [` b`, `e`,` s`, `t`]] The String of list is: [` gfg `,` is`, `best`]