Brainstorming 08: Python Functions: Error Analysis, Output Prediction & Function Design

Easy Level (10 Questions)

Error-Based (3 Questions)

1.  Identify and correct the error in the following function:
   
   

   def greet(name):
       print("Hello" + name)
   greet()  
   
   

2.  What will be the output of the following code? If there is an error, explain why.

   
   def square(num):
       return num ** 2
   print(square())  
   
   

3.  Find the error in the function and fix it:

   
   def add(a, b):
       return a + b
   print(add(2))  
   
   

Output-Based (3 Questions)

4.  Predict the output:

   
   def func(a, b=5):
       return a * b
   print(func(2))
   print(func(2, 3))
   
   

5.  What will be the output?

   
   def message(name="User"):
       return "Hello " + name
   print(message("Alice"))
   print(message())
   
   

6.  Predict the output:

   
   def my_func(val):
       val += 5
       return val
   num = 10
   print(my_func(num))
   print(num)  
   
   

Function Design-Based (4 Questions)

7.   Write a function that takes an integer as input and returns whether it is positive, negative, or zero.

8.   Write a function that takes a string as input and returns its length.

9.   Create a function that accepts a list of numbers and returns the sum of even numbers.

10.  Define a function that takes a tuple of numbers and returns the largest number.
    
    

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Medium Level (6 Questions)

Error-Based (2 Questions)

11.  Identify and correct the error :

def greet(name="Guest", msg):
    print(f"{msg}, {name}")
greet("Hello")  

12.  What will be the output? Explain any errors.

def multiply(a, b=2, c):
    return a*b*c
print(multiply(3, 4))

Output-Based (2 Questions)

13.  Predict the output:

def modify_list(lst):
    lst.append(100)
    return lst
nums = [10, 20, 30]
print(modify_list(nums))
print(nums)  

14.  Predict the output:

def update_dict(d):
    d["new"] = 50
    return d
data = {"a": 10, "b": 20}
print(update_dict(data))
print(data)  

Function Design-Based (2 Questions)

15.  Write a function that accepts a dictionary and returns a new dictionary with keys and values swapped.

16.  Write a function that takes a tuple of integers and returns the sum of all elements.
    

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Hard Level (4 Questions)

Error-Based (1 Question)

17.  Identify and fix the error in the following function:

def calculate(a, b=2, c=3, d):
    return a + b + c + d
print(calculate(1, 2, 3, 4))

Output-Based (1 Question)

18.  Predict the output:

def test(a, L=[]):
    L.append(a)
    return L
print(test(1))
print(test(2))
print(test(3))

Function Design-Based (2 Questions)

19.  Write a recursive function to compute the sum of digits of a given number.

20.  Write a function that takes a list of tuples where each tuple contains a name and age, and returns a dictionary where names are keys and ages are values.