How do I convert between tuples and lists in Python?

Python provides simple built-in functions to convert between tuples and lists. Use list() to convert a tuple to a list, and tuple() to convert a list to a tuple.

Converting Tuple to List

To convert a tuple to a list, use the list() function with the tuple as a parameter.

Example with Integer Elements

# Creating a Tuple
mytuple = (20, 40, 60, 80, 100)

# Displaying the Tuple
print("Tuple =", mytuple)
print("Tuple Length =", len(mytuple))

# Tuple to list
mylist = list(mytuple)

# Display the list
print("List =", mylist)
print("Type =", type(mylist))

Tuple = (20, 40, 60, 80, 100)
Tuple Length = 5
List = [20, 40, 60, 80, 100]
Type = <class 'list'>

Example with String Elements

# Creating a Tuple with strings
mytuple = ("Jacob", "Harry", "Mark", "Anthony")

# Displaying the Tuple
print("Tuple =", mytuple)
print("Tuple Length =", len(mytuple))

# Tuple to list
mylist = list(mytuple)

# Display the list
print("List =", mylist)
print("Type =", type(mylist))

Tuple = ('Jacob', 'Harry', 'Mark', 'Anthony')
Tuple Length = 4
List = ['Jacob', 'Harry', 'Mark', 'Anthony']
Type = <class 'list'>

Converting List to Tuple

To convert a list to a tuple, use the tuple() function with the list as a parameter.

Example

# Creating a List
mylist = ["Jacob", "Harry", "Mark", "Anthony"]

# Displaying the List
print("List =", mylist)

# Convert List to Tuple
mytuple = tuple(mylist)
print("Tuple =", mytuple)
print("Type =", type(mytuple))

List = ['Jacob', 'Harry', 'Mark', 'Anthony']
Tuple = ('Jacob', 'Harry', 'Mark', 'Anthony')
Type = <class 'tuple'>

Key Differences

Conclusion

Use list() to convert tuples to lists when you need mutable data. Use tuple() to convert lists to tuples when you need immutable, hashable data structures.