How to Convert Tuple to List in Python

Ishaan Shrivastava Feb 02, 2024

A tuple is a built-in data type that is used to store multiple values in a single variable. It is written with round brackets and is ordered and unchangeable.

A list is a dynamically sized array that can be both homogeneous and heterogeneous. It is ordered, has a definite count, and is mutable, i.e., and we can alter it even after its creation.

We convert a tuple into a list using this method.

Use the `list()` Function to Convert a Tuple to a List in Python

The `list()` function is used to typecast a sequence to a list and initiate lists in Python.

We can use it to convert a tuple to a list.

For Example,

``````tup1 = (111, "alpha", "beta", "gamma", 222)
list1 = list(tup1)
print("list elements are:", list1)
``````

Output:

``````list elements are: [111,'alpha','beta','gamma',222]
``````

Here, the entered tuple in `tup1` has been converted into a list `list1`.

Use the Unpack Operator `*` to Convert a Tuple to a List in Python

The `*` operator to unpack elements from an iterable. It is present in Python 3.5 and above. We can use it to convert a tuple to a list in Python.

For example,

``````tup1 = (111, "alpha", "beta", "gamma", 222)
list1 = [*tup1]
print("list elements are:", list1)
``````

Output:

``````list elements are: [111,'alpha','beta','gamma',222]
``````

Use the List Comprehension Method to Convert a Tuple to a List in Python

List comprehension is an elegant, concise way to create lists in Python with a single line of code. We can use this method to convert a tuple containing multiple tuples to a nested list.

See the following example.

``````tup1 = ((5, 6, 8, 9), (9, 5, 4, 2))

lst = [list(row) for row in tup1]

print(lst)
``````

Output:

``````[[5, 6, 8, 9], [9, 5, 4, 2]]
``````

Use the `map()` Function to Convert a Tuple to a List in Python

The `map()` function can apply a function to each item in an iterable. We can use it with the `list()` function to convert tuple containing tuples to a nested list.

For example,

``````tup1 = ((5, 6, 8, 9), (9, 5, 4, 2))

lst = list(map(list, tup1))

print(lst)
``````

Output:

``````[[5, 6, 8, 9], [9, 5, 4, 2]]
``````