Python Exercise: Convert a given list of tuples to a list of lists

Last update on March 28 2025 13:04:19 (UTC/GMT +8 hours)

33. Convert a List of Tuples to a List of Lists

Write a Python program to convert a given list of tuples to a list of lists.

Sample Solution:

Python Code:

# Define a function named 'test' that takes a list of tuples 'lst_tuples' as input.
def test(lst_tuples):
    # Use a list comprehension to convert each tuple in 'lst_tuples' to a list.
    result = [list(el) for el in lst_tuples]
    
    # Return the resulting list of lists.
    return result

# Create a list of tuples 'lst_tuples' containing tuples of integers.
lst_tuples = [(1, 2), (2, 3), (3, 4)]

# Print a message indicating the original list of tuples.
print("Original list of tuples:")
print(lst_tuples)

# Print a message indicating the conversion of the list of tuples to a list of lists.

# Call the 'test' function to perform the conversion and print the result.
print("Convert the said list of tuples to a list of lists:")
print(test(lst_tuples))

# Create another list of tuples 'lst_tuples' with a different set of tuples, including varying numbers of elements.
lst_tuples = [(1, 2), (2, 3, 5), (3, 4), (2, 3, 4, 2)]

# Print a message indicating the original list of tuples.
print("\nOriginal list of tuples:")
print(lst_tuples)

# Print a message indicating the conversion of the list of tuples to a list of lists.

# Call the 'test' function to perform the conversion and print the result.
print("Convert the said list of tuples to a list of lists:")
print(test(lst_tuples)) 

Sample Output:

Original list of tuples:
[(1, 2), (2, 3), (3, 4)]
Convert the said list of tuples to a list of lists:
[[1, 2], [2, 3], [3, 4]]

Original list of tuples:
[(1, 2), (2, 3, 5), (3, 4), (2, 3, 4, 2)]
Convert the said list of tuples to a list of lists:
[[1, 2], [2, 3, 5], [3, 4], [2, 3, 4, 2]]

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to convert each tuple in a list into a list using list comprehension.
• Write a Python program to iterate over a list of tuples and construct a new list of lists from them.
• Write a Python program to implement a function that takes a list of tuples and returns a list where each tuple is converted to a list.
• Write a Python program to use map() to transform a list of tuples into a list of lists.

Python Code Editor:

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