Python Test After Decorators

A variable or value that is passed into a function or method is called a

what will be the output of following code?

Answer explanation

t

Write a lambda function to add two numbers.

Answer explanation

add = lambda x, y: x + y

print(add(2, 3))

How many element does the lst list contain?

What is the output of the following snippet?

What is the output of the following snippet?

Answer explanation

[1, 1, 1, 2]

What is the output of the following snippet?

Answer explanation

one

Find the Maximum Product of Two Numbers in a List
lst = [1, 2, 3, 4]

Answer explanation

lst = [1, 2, 3, 4]

# Sort the list

lst.sort()

# Maximum product is the product of the last two numbers

max_product = lst[-1] * lst[-2]

print("Maximum product of two numbers in the list:", max_product)

Write a program that takes an integer as input from the user and calculates its factorial. Print the factorial.

Answer explanation

# Get input from user

num = int(input("Enter a number: "))

# Initialize factorial

factorial = 1

# Check if number is negative, zero, or positive

if num < 0:

print("Factorial does not exist for negative numbers.")

elif num == 0:

print("The factorial of 0 is 1.")

else:

for i in range(1, num + 1):

factorial *= i

print(f"The factorial of {num} is {factorial}.")

Write a program that uses a decorator to print "Before" and "After" around a function that prints "Hello".

Answer explanation

# Define the decorator

def my_decorator(func):

def wrapper():

print("Before")

func()

print("After")

return wrapper

# Apply the decorator

@my_decorator

def say_hello():

print("Hello")

# Call the decorated function

say_hello()