Python: Sort each sublist of strings in a given list of lists using lambda

Last update on April 22 2025 12:55:46 (UTC/GMT +8 hours)

27. Sort Sublists Lambda

Write a Python program to sort each sublist of strings in a given list of lists using lambda.

Sample Solution:

Python Code :

# Define a function 'sort_sublists' that takes a list of lists 'input_list' as input
def sort_sublists(input_list):
    # Use list comprehension to create a new list 'result'
    # Sort each sublist in 'input_list' based on the first element of each sublist
    # The sorted() function is used with a lambda function as the sorting key
    result = [sorted(x, key=lambda x: x[0]) for x in input_list]
    
    # Return the sorted list of lists
    return result

# Create a list of lists named 'color1'
color1 = [["green", "orange"], ["black", "white"], ["white", "black", "orange"]]

# Print the original list 'color1'
print("\nOriginal list:")
print(color1)

# Sort each sublist of 'color1' using the 'sort_sublists' function and print the result
print("\nAfter sorting each sublist of the said list of lists:")
print(sort_sublists(color1))

Sample Output:

Original list:
[['green', 'orange'], ['black', 'white'], ['white', 'black', 'orange']]

After sorting each sublist of the said list of lists:
[['green', 'orange'], ['black', 'white'], ['black', 'orange', 'white']]

For more Practice: Solve these Related Problems:

Write a Python program to sort each sublist of integers in descending order using lambda.
Write a Python program to sort each sublist of mixed data types by converting each element to a string using lambda.
Write a Python program to sort each sublist based on the length of its elements using lambda.
Write a Python program to sort each sublist in reverse alphabetical order using lambda.

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Python Code Editor:

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