Python Exercise: Sort a tuple by its float element

Last update on March 28 2025 13:03:33 (UTC/GMT +8 hours)

23. Sort a Tuple by Its Float Element

Write a Python program to sort a tuple by its float element.

Sample Solution:

Python Code:

# Create a list of tuples 'price', where each tuple represents an item and its price as a string.
price = [('item1', '12.20'), ('item2', '15.10'), ('item3', '24.5')]
# Sort the 'price' list based on the price values (the second element in each tuple).
# The 'key' argument specifies a lambda function to convert the price strings to float values.
# Sorting is done in reverse (descending) order using the 'reverse' argument.
sorted_price = sorted(price, key=lambda x: float(x[1]), reverse=True)

# Print the 'sorted_price' list, which contains the items sorted by price in descending order.
print(sorted_price)

Sample Output:

[('item3', '24.5'), ('item2', '15.10'), ('item1', '12.20')] 

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to sort a tuple of tuples by the float conversion of their second element.
• Write a Python program to use sorted() with a lambda function to order tuples based on a float value in one of the positions.
• Write a Python program to implement a function that returns a sorted tuple based on the numerical value of one element.
• Write a Python program to compare two tuples based on the float conversion of a specific element and sort them accordingly.

Python Code Editor:

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