Python Quiz

What is the primary advantage of using list comprehensions in Python?

• Slower execution time

• More readable and concise code

• Uses more memory

• Requires additional libraries

Which of the following is the correct syntax for a list comprehension that squares numbers from 1 to 5?

• [x^2 for x in range(1,6)]

• [x**2 for x in range(1,6)]

• {x**2 for x in range(1,6)}

• (x**2 for x in range(1,6))

What is a lambda function in Python?

• A function with a name

• A function that can have multiple statements

• An anonymous function defined using the lambda keyword

• A function that must return a list

How do you define a lambda function that returns the sum of two numbers?

• lambda x, y: return x + y

• lambda x, y: x + y

• def lambda(x, y): return x + y

• lambda (x, y): x + y

What is the purpose of a Python decorator?

• To modify the behavior of a function without changing its code

• To convert a function into a lambda function

• To create a new function from scratch

• To execute functions in reverse order

What is the output of the following decorator code?

• Prints only "Hello!"

• Throws an error

• Prints "Before function call", "Hello!", "After function call"

• Prints "Hello!" followed by "Before function call"

Which of the following statements about iterators in Python is TRUE?

• Iterators do not support the __next__() method

• Iterators can only be used once

• Iterators require an index to retrieve values

• Iterators are only applicable to dictionaries

How do you create a Python module?

• Create a .exe file

• Create a .txt file

• Create a .py file with function definitions

• Create a .html file

What is the purpose of __init__.py in a Python package?

• It initializes global variables

• It is required for a directory to be recognized as a package

• It contains the main function of the package

• It speeds up package execution

How can you import a function my_function from a module my_module?

• import my_function from my_module

• from my_module import my_function

• import my_module.my_function

• import my_function