[Tut] Convert Tuple to List

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Convert Tuple to List

Problem: Given a Python tuple with

Code:

n

elements. How to convert it into a list with the same

Code:

n

elements?

Examples:

• Convert tuple
  Code:

  (1, 2, 3, 4, 5)
  into list
  Code:

  [1, 2, 3, 4, 5]
  .
  
  
• Convert tuple
  Code:

  ('Alice', 'Bob', 'Ann')
  into list
  Code:

  ['Alice', 'Bob', 'Ann']
  .
  
  
• Convert tuple
  Code:

  (1,)
  into list
  Code:

  [1]
  .
  

Note Tuple: Tuples are similar to lists—with the difference that you cannot change the tuple values (tuples are immutable) and you use parentheses rather than square brackets.

Solution: Use the built-in Python

Code:

list()

function to convert a list into a tuple. You don’t need to import any external library.

Code: The following code converts the three given tuples into lists.

Code:

tuple_1 = (1, 2, 3, 4, 5) print(list(tuple_1)) # [1, 2, 3, 4, 5] tuple_2 = ('Alice', 'Bob', 'Ann') print(list(tuple_2)) # ['Alice', 'Bob', 'Ann'] tuple_3 = (1,) print(list(tuple_3)) # [1]

Try It Yourself: With our interactive code shell, you can try it yourself. As a small exercise, try to convert the empty tuple

Code:

()

into a list and see what happens.

https://repl.it/@finxter/tupletolist?lite=true

Explanation: You can see that converting a tuple with one element leads to a list with one element. The

Code:

list()

function is the easiest way to convert a tuple into a list. Note that the values in the tuple are not copied—only a new reference to the same element is created:



The graphic also shows how to convert a tuple back to a list by using the

Code:

tuple()

function (that’s also a Python built-in function). Thus, calling

Code:

list(tuple(lst))

on a list

Code:

lst

will result in a new list with the same elements.

Related articles:

• List copy
  
  
• List complete guide
  
  
• Convert list to tuple
  
  
• Convert list to dict
  

Try to execute this code with the interactive Python tutor:

https://pythontutor.com/iframe-embed.htm...nces=false