Python: Convert a given list of strings into list of lists using map function

Last update on July 12 2025 13:07:33 (UTC/GMT +8 hours)

16. Strings to Lists Map

Write a Python program to convert a given list of strings into a list of lists using the map function.

Sample Solution:

Python Code:

# Define a function named 'strings_to_listOflists' that takes a list of strings as input
def strings_to_listOflists(str):
    # Use the 'map' function with 'list' to convert each string into a list of its individual characters
    result = map(list, str)
    # Convert the map object to a list and return the result
    return list(result)

# Define a list of strings named 'colors'
colors = ["Red", "Green", "Black", "Orange"]

# Print a message indicating the operation to be performed
print('Original list of strings:')

# Print the original list of strings
print(colors)

# Print a newline for better readability
print("\n")

# Print a message indicating the operation to be performed
print("Convert the said list of strings into list of lists:")

# Print the result of calling the 'strings_to_listOflists' function with the 'colors' list
print(strings_to_listOflists(colors))

Sample Output:

Original list of strings:
['Red', 'Green', 'Black', 'Orange']

Convert the said list of strings into list of lists:
[['R', 'e', 'd'], ['G', 'r', 'e', 'e', 'n'], ['B', 'l', 'a', 'c', 'k'], ['O', 'r', 'a', 'n', 'g', 'e']]

For more Practice: Solve these Related Problems:

• Write a Python program to use map to split each string in a list into a list of words.
• Write a Python program to convert each string into a list of its characters using the map() function.
• Write a Python program to map a function that splits each string by a specified delimiter into a list.
• Write a Python program to apply map to transform each string into a list of its ASCII code values.

Go to:

• Python Map Exercises Home ↩
• Python Exercises Home ↩

Previous: Write a Python program to split a given dictionary of lists into list of dictionaries using map function.

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.