) Explain the use of Lambdas in Python with an example.

Lambdas in Python are anonymous functions that can be defined without a name. They are commonly used when we need a small, one-line function without the need to define a separate function using the def keyword.

Here is an example to illustrate the use of lambdas in Python:

# Example 1: Adding two numbers using a lambda function
addition = lambda x, y: x + y
result = addition(5, 3)
print(result)  # Output: 8

# Example 2: Sorting a list of tuples based on the second element using a lambda function
students = [('John', 25), ('Alice', 20), ('Bob', 22)]
students.sort(key=lambda x: x[1])
print(students)  # Output: [('Alice', 20), ('Bob', 22), ('John', 25)]

In the first example, we define a lambda function called addition that takes two arguments x and y and returns their sum. We then call the lambda function with arguments 5 and 3, and store the result in the variable result. Finally, we print the result, which is 8.

In the second example, we have a list of tuples representing students' names and ages. We use the sort method to sort the list based on the second element of each tuple (i.e., the age). We pass a lambda function as the key parameter to specify the sorting criterion. The lambda function takes a tuple x and returns its second element x[1]. As a result, the list of students is sorted in ascending order of their ages.

Lambdas are particularly useful in scenarios where we need to define simple, one-time functions without the need for a formal function definition. They provide a concise and convenient way to write functions on the fly.