Python Functions Exercise and Solutions

Question 1 : How to create a function with variable length of arguments? And print each value in the function.

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def func(*args):
    for i in args:
        print(i)
        
print("First Call")
func(40,50)

print("\nSecond Call")
func(10,20,30)

Output:

First Call
40
50

Second Call
10
20
30

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Question 2 : Return multiple values from a function(return addition, subtraction, multiplication and division)

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def calc(x, y):
    addition = x+y
    subtraction = x-y
    multiplication = x*y
    division = x/y
    
    return addition, subtraction, multiplication, division

addition, subtraction, multiplication, division = calc(4,2)

print("Addition =", addition)
print("Subtraction =", subtraction)
print("Multiplication =", multiplication)
print("Division =", division)

Output:

Addition = 6
Subtraction = 2
Multiplication = 8
Division = 2.0

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Question 3 : Create a function with the inner function to return the addition and subtraction of the values passed as arguments.

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def calculations(x, y):
    def addition(a, b):
        return a + b
    
    def subtraction(a, b):
        return a - b
  
    return addition(x, y), subtraction(x, y)

add, sub = calculations(4, 6)

print("Addition =", add)
print("Subtraction =", sub)

Output:

Addition = 10
Subtraction = -2

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Question 4 : Create a function named “calculation” to print the addition of two numbers. Call the same function again using the name “addition”.

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def calculations(x, y):
    def addition(a, b):
        return a + b
    
    def subtraction(a, b):
        return a - b
  
    return addition(x, y), subtraction(x, y)

add, sub = calculations(4, 6)

print("Addition =", add)
print("Subtraction =", sub)

Output:

Addition = 10
Subtraction = -2

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Question 5 : Write a function in Python to check whether the string is pangram or not?

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def is_pangram(str):
    alphabets = set('abcdefghijklmnopqrstuvwxyz')
    return alphabets <= set(str.lower())

print(is_pangram('The quick brown fox jumps over the lazy dog'))
print(is_pangram('The quick brown fox jumps over the lazy'))

Output:

True
False

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Question 6 : Write a function in Python to sort the words of the sentence in the alphabetical order.

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def sort_string(str):
    items = [s for s in str.split()]
    items.sort()
    sorted_str = ' '.join(items)
    return(sorted_str)

srt = 'abcd az acd bo ba'
sort_string(srt)

Output:

'abcd acd az ba bo'

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Question 7 : Write a function in python to check whether the string is the Palindrome or not.

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def is_palindrome(str):
    return str == str[::-1]

print(is_palindrome('radar'))
print(is_palindrome('racecar'))
print(is_palindrome('racecars'))

Output:

True
True
False

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Question 8 : Write a function in Python to calculate the alphabets and digits from the string.

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def count_alpha_digit(str):
    dict = {'alphabet' : 0, 'digit' : 0}
    for s in str:
        if s.isalpha():
            dict['alphabet'] += 1
        elif s.isdigit():
            dict['digit'] += 1
        else:
            pass
    return dict

print(count_alpha_digit('Logical Python1 0101'))

Output:

{'alphabet': 13, 'digit': 5}

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Question 9 : Write a function in Python to calculate the frequency of each word in the string.

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def count_frequency(str):
    frequency = {}
    for s in str.split():
        frequency[s] = frequency.get(s, 0) + 1
    return frequency



str = "This the just the the the frequency test test of the string"
print(count_frequency(str))

Output:

{'This': 1, 'the': 5, 'just': 1, 'frequency': 1, 'test': 2, 'of': 1, 'string': 1}

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