Python top 25 Logical programming interview question & Answer | important python language question and answer ?

😀 Python top 25 Logical programming interview question & Answer. It is very useful for Fresher and  Experience. If you learn this make sure you can get good marks in your exam and interview.

1.Write a program to find Area of Triangle..?

Ans-

a = float(input('Enter first side: '))  

b = float(input('Enter second side: '))  

c = float(input('Enter third side: '))  

   s = (a + b + c) / 2  

  # calculate the area  

area = (s*(s-a)*(s-b)*(s-c)) ** 0.5  

print('The area of the triangle is %0.2f' %area)   

=>Output-

Enter the first side: 5

Enter the second side: 7

Enter the third side: 8

The area of the triangle is 17.32

2.Write a program to check A Leap Year or Not..?

Ans-

year = int(input("Enter a year: "))  

if (year % 4) == 0:  

   if (year % 100) == 0:  

       if (year % 400) == 0:  

           print("{0} is a leap year".format(year))  

       else:  

           print("{0} is not a leap year".format(year))  

   else:  

       print("{0} is a leap year".format(year))  

else:  

   print("{0} is not a leap year".format(year))  

=>Outpou-

Enter a year: 2020

2020 is a leap year

OR

Enter a year: 2021

2021 is not a leap year

3.Write a program to find Factorial of a  number..?

Ans-

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

factorial = 1  

if num < 0:  

   print("Sorry, 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 = factorial*i  

   print("The factorial of",num,"is",factorial)  

Output-

Enter a number: 20

The factorial of 20 is 2432902008176640000

OR

Enter a number: 10

The factorial of 10 is 3628800

4.Write a program to check Armstrong or not..?

Ans-

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

sum = 0  

temp = num  

  

while temp > 0:  

   digit = temp % 10  

   sum += digit ** 3  

   temp //= 10  

  

if num == sum:  

   print(num,"is an Armstrong number")  

else:  

   print(num,"is not an Armstrong number")  

Output-

 

Enter a number: 121

121 is not an Armstrong number

OR

Enter a number: 153

153 is an Armstrong number

5.Write a program to find the sum of Natural Number..?

Ans-

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

  

if num < 0:  

   print("Enter a positive number")  

else:  

   sum = 0  

   

   while(num > 0):  

       sum += num  

       num -= 1  

   print("The sum is",sum) 

Output-

Enter a number: 4

The sum is 10

OR

Enter a number: 15

The sum is 120

6.Write a program to find the ASCII value of any character..?

Ans-

a = input("Enter a character: ")  

  

print("The ASCII value of '" + a + "' is",ord(a))  

Output-

Enter a character: b

The ASCII value of 'b' is 98

OR

Enter a character: f

The ASCII value of 'f' is 102

7.Write a program to find Display Calendar..?

Ans-

import calendar

yy = int(input("Enter year: "))  

mm = int(input("Enter month: "))

# display the calendar  

print(calendar.month(yy,mm))  

Output-

Enter year: 2020

Enter month: 10

    October 2020

Mo Tu We Th Fr Sa Su

          1  2  3  4

 5  6  7  8  9 10 11

12 13 14 15 16 17 18

19 20 21 22 23 24 25

26 27 28 29 30 31

8.Write a program to remove Punctuation from a String..?

Ans-

#All Punctuation was taken as an example here.

punctuation = '''''!()-[]{};:'"\,<>./?@#$%^&*_~'''

 my_str = input("Enter a string: ")  

# remove punctuation from the string

no_punct = ""  

for char in my_str:  

   if char not in punctuation:  

       no_punct = no_punct + char  

print(no_punct)  

Output-

Enter a string: how are you friends, where are you from..?

how are your friends where  are you from

OR

Enter a string: What's your name, where are going? why are you coming!!.

What's your name where are going why are you coming

9.Write a program to sort the elements of an array in ascending order..?

Ans-

arr = [9, 2, 8, 7, 1, 13, 3];     

temp = 0;    

  #Displaying elements of original array    

print("Elements of original array: ");    

for i in range(0, len(arr)):    

    print(arr[i], end=" ");    

#Sort the array in ascending order    

for i in range(0, len(arr)):    

    for j in range(i+1, len(arr)):    

        if(arr[i] > arr[j]):    

            temp = arr[i];    

            arr[i] = arr[j];    

            arr[j] = temp;    

     print();    

print("Elements of array sorted in ascending order: ");    

for i in range(0, len(arr)):    

    print(arr[i], end=" ");    

Output-

Elements of original array: 

9 2 8 7 1 13 3 

Elements of array sorted in ascending order: 

1 2 3 7 8 9 13 

10.Write a program Half pyramid pattern with numbers

Note-Note: In this pattern, The count of numbers on each row is equal to the current row number. In each row, every next number is incremented by 1

Ans-

rows = 5

for row in range(1, rows+1):

    for column in range(1, row + 1):

        print(column, end=' ')

    print("")

Output-

1 

1 2 

1 2 3 

1 2 3 4 

1 2 3 4 5 

11.write a Program to convert temperature in celsius to Fahrenheit

Ans-

# You can change the value for a different result

celsius = 40.7

# calculate fahrenheit

fahrenheit = (celsius * 1.8) + 32

print('%0.1f degree Celsius is equal to %0.1f degree Fahrenheit' %(celsius,fahrenheit))

Output-

40.7 degree Celsius is equal to 105.3 degrees Fahrenheit

12.Write a Python program to find the smallest and largest word in a given string...?

Ans-

def smallest_largest_words(str1):

    word = "";

    all_words = [];

    str1 = str1 + " ";

    for i in range(0, len(str1)):

        if(str1[i] != ' '):

            word = word + str1[i];  

        else:

            all_words.append(word);  

            word = "";  

      small = large = all_words[0];  

  #Find the smallest and largest word in the str1  

 for k in range(0, len(all_words)):

        if(len(small) > len(all_words[k])):

            small = all_words[k];

        if(len(large) < len(all_words[k])):

            large = all_words[k];

    return small,large;

str1 = "Write a Python program to sort an array using Quick sort Algorithm.";  

print("Original Strings:\n",str1)

small, large = smallest_largest_words(str1)  

print("Smallest word: " + small);  

print("Largest word: " + large); 

Output-

Original Strings:

Write a Python program to sort an array using Quicksort Algorithm.

Smallest word: a

Largest word: Algorithm.

13.Write a Python program to count Uppercase, Lowercase, special character, and numeric values in a given string..?

Ans-

def count_chars(str):

     upper_ctr, lower_ctr, number_ctr, special_ctr = 0, 0, 0, 0

     for i in range(len(str)):

          if str[i] >= 'A' and str[i] <= 'Z': upper_ctr += 1

          elif str[i] >= 'a' and str[i] <= 'z': lower_ctr += 1

          elif str[i] >= '0' and str[i] <= '9': number_ctr += 1

          else: special_ctr += 1

     return upper_ctr, lower_ctr, number_ctr, special_ctr

    # You can take an example for didrrerent form.       

str = "javaforjob1.blogspot.Com"

print("Original Substrings:",str)

u, l, n, s = count_chars(str)

print('\nUpper case characters: ',u)

print('Lower case characters: ',l)

print('Number case: ',n)

print('Special case characters: ',s)

Output-

Original Substrings: javaforjob1.blogspot.Com

Upper case characters:  1

Lower case characters:  20

Number case:  1

Special case characters:  2

14.Write a Python program to reverse words in a string..?

Ans-

def reverse_string_words(text):

    for line in text.split('\n'):

        return(' '.join(line.split()[::-1]))

    print(reverse_string_words("Welcome to our javaforjob1.blogspot.com in my tutorial"))

print(reverse_string_words("Prince Shahjahan"))

Output-

tutorial my in javaforjob1.blogspot.com our to Welcome

Shahjahan Prince

15.Write a Python program to remove spaces from a given string..?

Ans-

def remove_spaces(str1):

  str1 = str1.replace(' ','')

  return str1

    print(remove_spaces("ja va for job 1"))

print(remove_spaces("a b c d e f"))

Output-

javaforjob1

abcdef

16.Write an example of program Python in Multiple Inheritance..?

Ans-

# Parent class 1

class TeamMember(object):                   

   def __init__(self, name, uid): 

      self.name = name 

      self.uid = uid 

  # Parent class 2

class Worker(object):                 

   def __init__(self, pay, jobtitle): 

      self.pay = pay 

      self.jobtitle = jobtitle 

  # Deriving a child class from the two parent classes

class TeamLeader(TeamMember, Worker):         

   def __init__(self, name, uid, pay, jobtitle, Fresher): 

      self.Fresher = Fresher 

      TeamMember.__init__(self, name, uid) 

      Worker.__init__(self, pay, jobtitle)

      print("Name: {}, Pay: {}, Fresher: {}".format(self.name, self.pay, self.Fresher))

TL = TeamLeader('SHAHJAHAN', 10001, 35000, 'Scrum Master', 1)

Output-

Name: SHAHJAHAN, Pay: 35000, Fresher: 1

17.Write a program in python using polymorphism with the Class method..?

Ans-

class India(): 

    def capital(self): 

        print("New Delhi is the capital of India.") 

  def language(self): 

        print("Hindi is the most widely spoken language of India.") 

   def type(self): 

        print("India is a developing country.") 

  class USA(): 

    def capital(self): 

        print("Washington, D.C. is the capital of USA.") 

  def language(self): 

        print("English is the primary language of the USA.") 

   def type(self): 

        print("USA is a developed country.") 

 obj_ind = India() 

obj_usa = USA() 

for country in (obj_ind, obj_usa): 

    country.capital() 

    country.language() 

    country.type() 

Output-

New Delhi is the capital of India.

Hindi is the most widely spoken language of India.

India is a developing country.

Washington, D.C. is the capital of the USA.

English is the primary language of the USA.

The USA is a developed country.

18.25) Write a Python Program to Count the Number of Digits in a Number..?

Ans-

n=int(input("Enter number:"))

count=0

while(n>0):

count=count+1

n=n//10

print("The number of digits in the number is:",count)

Output:

Enter number:14325

19.Write a Python Program to Find the Second Largest Number in a List..?

Ans-a=[]

n=int(input("Enter number of elements:"))

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

b=int(input("Enter element:"))

a.append(b)

a.sort()

print("Second largest element is:",a[n-2])

Output:

Enter the number of elements:4

Enter element:23

Enter element:56

Enter element:39

Enter element:11

The second largest element is: 39

20.Write a Python Program to Check Common Letters in Two Input Strings..?

Ans-s1=raw_input("Enter first string:")

s2=raw_input("Enter second string:")

a=list(set(s1)&set(s2))

print("The common letters are:")

for i in a:

print(i)

Output:

Enter first string: Hello

Enter second string: How are you

The common letters are:

H

e

o

21.Write a Python Program to Swap the First and Last Value of a List..?

Ans-a=[]

n= int(input("Enter the number of elements in list:"))

for x in range(0,n):

element=int(input("Enter element" + str(x+1) + ":"))

a.append(element)

temp=a[0]

a[0]=a[n-1]

a[n-1]=temp

print("New list is:")

print(a)

Output:

Enter the number of elements in list:4

Enter element1:23

Enter element2:45

Enter element3:67

Enter element4:89

The new list is:

[89, 45, 67, 23]

The number of digits in the number is: 5

22.Write a Python Program to Print Table of a Given Number..?

Ans-

n=int(input("Enter the number to print the tables for:"))

for i in range(1,11):

print(n,"x",i,"=",n*i)

Output:

Enter the number to print the tables for:7

7 x 1 = 7

7 x 2 = 14

7 x 3 = 21

7 x 4 = 28

7 x 5 = 35

7 x 6 = 42

7 x 7 = 49

7 x 8 = 56

7 x 9 = 63

7 x 10 = 70

23.Write a program to find the sum of the digits of a number in Python..?

Ans-

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

tot=0

while(n>0):

dig=n%10

tot=tot+dig

n=n//10

print("The total sum of digits is:",tot)

Output:

Enter a number:1928

The total sum of digits is: 20

24.Write a NumPy program to convert a given array into a list and then convert it into a list again..?

Ans-

import numpy as np

a = [[1, 2], [3, 4]]

x = np.array(a)

a2 = x.tolist()

print(a == a2)

Output-

True

25.Write a Pandas program to get the items of a given series not present in another given series...?

Ans-import pandas as pd

sr1 = pd.Series([1, 2, 3, 4, 5])

sr2 = pd.Series([2, 4, 6, 8, 10])

print("Original Series:")

print("sr1:")

print(sr1)

print("sr2:")

print(sr2)

print("\nItems of sr1 not present in sr2:")

result = sr1[~sr1.isin(sr2)]

print(result)

print("Done!")

Output-

Original Series:

sr1:

0    1

1    2

2    3

3    4

4    5

type: int64

sr2:

0     2

1     4

2     6

3     8

4    10

type: int64

Items of sr1 not present in sr2:

0    1

2    3

4    5

type: int64  

Done!              

Thank You?