25 Advanced Python MCQs: Test Your Skills with These Python Programming Questions

Python MCQs: Test Your Python Knowledge

1. Which of the following is the correct way to define a function in Python?

• A) function myFunc()
• B) def myFunc():
• C) create function myFunc()
• D) def myFunc;

Answer: B) def myFunc():

Explanation: In Python, functions are defined using the def keyword.

2. What will be the output of print(type([]))?

• A) list
• B) dict
• C) tuple
• D) set

Answer: A) list

Explanation: In Python, [] represents a list, so type([]) will return .

3. Which of the following methods is used to remove the last element of a list?

• A) remove()
• B) pop()
• C) del()
• D) clear()

Answer: B) pop()

Explanation: The pop() method removes and returns the last element from the list.

4. Which of the following is NOT a valid Python data type?

• A) int
• B) string
• C) char
• D) float

Answer: C) char

Explanation: Python does not have a char data type. Characters are represented as strings in Python (i.e., single-character strings).

5. What does the @staticmethod decorator do?

• A) Makes a method callable without creating an object of the class
• B) Allows access to the instance of the class
• C) Defines a class method
• D) Allows method to modify the class state

Answer: A) Makes a method callable without creating an object of the class

Explanation: The @staticmethod decorator allows a method to be called on the class without needing to instantiate an object.

6. How do you check if a key exists in a dictionary?

• A) key in dict
• B) dict.exists(key)
• C) dict.has_key(key)
• D) key.contains(dict)

Answer: A) key in dict

Explanation: The in keyword checks if the key exists in the dictionary.

7. What will the following code output?

class MyClass:
    def __init__(self, x):
        self.x = x
    
obj = MyClass(10)
print(obj.x)
        

• A) 0
• B) 10
• C) Error
• D) None

Answer: B) 10

Explanation: The __init__ method initializes the object with the value of x, which is 10.

8. Which of the following is the correct syntax for inheriting a class in Python?

• A) class Child: inherits Parent
• B) class Child extends Parent
• C) class Child(Parent):
• D) class Child inherits Parent:

Answer: C) class Child(Parent):

Explanation: In Python, inheritance is declared by specifying the parent class in parentheses when defining the child class.

9. What will be the output of the following Python code?

result = (lambda x, y: x * y)(5, 10)
print(result)
        

• A) 50
• B) 15
• C) Error
• D) None

Answer: A) 50

Explanation: The lambda function multiplies 5 and 10, so the result is 50.

10. Which Python function is used to get the current time?

• A) time.time()
• B) datetime.now()
• C) time.current()
• D) datetime.get_time()

Answer: B) datetime.now()

Explanation: To get the current date and time, you can use datetime.now() from the datetime module.

11. What does the __str__() method do in Python?

• A) Returns a string representation of an object
• B) Initializes a new string object
• C) Converts a string to uppercase
• D) Checks if the object is a string

Answer: A) Returns a string representation of an object

Explanation: The __str__() method is used to return a human-readable string representation of an object, typically used for printing.

12. Which of the following libraries is commonly used for data manipulation and analysis in Python?

• A) NumPy
• B) pandas
• C) Matplotlib
• D) tkinter

Answer: B) pandas

Explanation: The pandas library is widely used for data manipulation and analysis in Python.

13. What is the result of 2**3 in Python?

• A) 5
• B) 6
• C) 8
• D) 9

Answer: C) 8

Explanation: 2**3 represents 2 raised to the power of 3, which is 8.

14. Which of the following will generate an error in Python?

• A) x = 5 / 2
• B) x = 5 // 2
• C) x = 5 % 2
• D) x = 5 / 0

Answer: D) x = 5 / 0

Explanation: Division by zero raises a ZeroDivisionError in Python.

15. How do you declare a global variable inside a function in Python?

• A) global var
• B) declare var
• C) set var as global
• D) var = global

Answer: A) global var

Explanation: The global keyword is used to declare a variable as global inside a function.

16. Which of the following is used for multi-threading in Python?

• A) threading
• B) time
• C) os
• D) multiprocessing

Answer: A) threading

Explanation: Python’s threading module is used to implement multi-threading.

17. How do you comment multiple lines in Python?

• A) # comment line
• B) ''' comment lines '''
• C) // comment lines
• D) -- comment lines

Answer: B) ''' comment lines '''

Explanation: Triple quotes (''' or """) can be used for multi-line comments in Python.

18. What does the 'break' statement do in Python?

• A) Exits the current loop
• B) Continues to the next iteration of a loop
• C) Exits the current function
• D) Pauses the program

Answer: A) Exits the current loop

Explanation: The break statement is used to exit the current loop prematurely.

19. What will the following code output?

x = 10
def func():
    x = 20
    print(x)
func()
print(x)
        

• A) 20 10
• B) 10 20
• C) 10 10
• D) 20 20

Answer: A) 20 10

Explanation: The function prints the local value of x (20), and then the global value of x (10) is printed.

20. Which of the following is used to get the length of a string in Python?

• A) len()
• B) size()
• C) length()
• D) get_length()

Answer: A) len()

Explanation: The len() function is used to get the length of a string in Python.

21. What is the correct way to handle exceptions in Python?

• A) try...catch
• B) try...except
• C) catch...finally
• D) try...throw

Answer: B) try...except

Explanation: In Python, exceptions are handled using the try...except block.

22. Which of the following is used to define an empty set in Python?

• A) set()
• B) {}
• C) []
• D) ()

Answer: A) set()

Explanation: An empty set is defined using the set() function. {} creates an empty dictionary.

23. Which method would you use to join a list of strings into a single string?

• A) join()
• B) append()
• C) extend()
• D) split()

Answer: A) join()

Explanation: The join() method is used to concatenate a list of strings into a single string.

24. What does the following code snippet do?

for i in range(5):
    if i == 3:
        continue
    print(i)
        

• A) Prints 0 1 2 3 4
• B) Prints 0 1 2 4
• C) Prints 0 1 2
• D) Prints 1 2 3 4

Answer: B) Prints 0 1 2 4

Explanation: The continue statement skips the iteration where i is 3.

25. Which of the following is NOT a valid Python data type?

• A) list
• B) set
• C) tuple
• D) array

Answer: D) array

Explanation: In Python, `list`, `set`, and `tuple` are built-in data types, but `array` is not a native data type. Python has an array module, but it's not used as frequently as lists for general purposes.