Python | Convert list of tuples to list of list

This is a quite simple problem but can have a good amount of application due to certain constraints of python language. Because tuples are immutable, they are not easy to process whereas lists are always a better option while processing. Let’s discuss certain ways in which we can convert a list of tuples to list of list.

Method #1 : Using list comprehension
This can easily be achieved using the list comprehension. We just iterate through each list converting the tuples to the list.

filter_none

edit
close

play_arrow

link
brightness_4
code

# Python3 code to demonstrate
# convert list of tuples to list of list
# using list comprehension
  
# initializing list 
test_list = [(1, 2), (3, 4), (5, 6)]
  
# printing original list 
print("The original list of tuples : " + str(test_list))
  
# using list comprehension
# convert list of tuples to list of list
res = [list(ele) for ele in test_list]
  
# print result
print("The converted list of list : " + str(res))

chevron_right






                        filter_none









Output :          


The original list of tuples : [(1, 2), (3, 4), (5, 6)]
The converted list of list : [[1, 2], [3, 4], [5, 6]]





 


Method #2 : Using map() + list

We can use the combination of map function and list operator to perform this particular task. The map function binds each tuple and converts it into list.











                                    filter_none




                                    edit

                                    close




                                    play_arrow




                                    link

                                    brightness_4

                                    code
                                




















# Python3 code to demonstrate 


# convert list of tuples to list of list 


# using map() + list 


  


# initializing list  


test_list = [(1, 2), (3, 4), (5, 6)] 


  


# printing original list  


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


  


# using map() + list 


# convert list of tuples to list of list 


res = list(map(list, test_list)) 


  


# print result 


print("The converted list of list : " + str(res)) 



















                        chevron_right







                        filter_none









Output :          


The original list of tuples : [(1, 2), (3, 4), (5, 6)]
The converted list of list : [[1, 2], [3, 4], [5, 6]]






          
          
          
          

            

    

        My Personal Notes
        arrow_drop_up
    

    

        
        

            
            
        

    


Recommended Posts:
manjeet_04
Check out this Author's contributed articles.
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on  the "Improve Article" button below.