 # Convert List to Tuple

Problem: Given a Python list with `n` elements. How to convert it into a tuple with the same `n` elements?

Examples:

• Convert list `[1, 2, 3, 4, 5]` into tuple `(1, 2, 3, 4, 5)`.
• Convert list `['Alice', 'Bob', 'Ann']` into tuple `('Alice', 'Bob', 'Ann')`.
• Convert list `` into tuple `(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 `tuple()` 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 lists into tuples.

```list_1 = [1, 2, 3, 4, 5]
print(tuple(list_1))
# (1, 2, 3, 4, 5)

list_2 = ['Alice', 'Bob', 'Ann']
print(tuple(list_2))
# ('Alice', 'Bob', 'Ann')

list_3 = 
print(tuple(list_3))
# (1,)```

Try It Yourself: With our interactive code shell, you can try it yourself. As a small exercise, try to convert the empty list `[]` into a tuple and look what happens.

Explanation: You can see that converting a list with one element leads to a tuple with one element. The `tuple()` function is the easiest way to convert a list into a tuple value. 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 `list()` function (that’s also a Python built-in function). Thus, calling `list(tuple(lst))` on a list `lst` will result in a new list with the same elements.

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Try to execute this code with the interactive Python tutor: