PYTHON LAB MANUAL : Part II

PART A – List of problems for which student should develop program and execute in the Laboratory

  1. Write a python program to find the best of two test average marks out of three test’s marks accepted from the user

Source Code :

mark1 = int (input("Enter the marks in the first test:"))
mark2 = int (input("Enter the marks in second test: "))
mark3 = int (input("Enter the marks in third test: "))

if (mark1 > mark2):
    if (mark2 > mark3):
        total_marks = mark1 + mark2
    else: 
        total_marks = mark1 + mark3
elif (mark1 > mark3):
    total_marks = mark1 + mark2
else:
    total_marks = mark2 + mark3
    
Average_marks = total_marks / 2
print ("The average of the best two test marks is:",Average_marks)

Output :

Enter the marks in the first test:18
Enter the marks in second test: 19
Enter the marks in third test: 24
The average of the best two test marks is: 21.5




2. Develop a Python program to check whether a given number is palindrome or not and also count the number of occurrences of each digit in the input number.

Source Code :

num = int(input("Enter a number: "))
temp1 = num
reverse = 0
while temp1 > 0:
    remainder = temp1 % 10
    reverse = (reverse * 10) + remainder
    temp1 = temp1 // 10
if num == reverse:
  print('The Entered Number %d is Palindrome'%(num))
else:
  print("The Entered Number %d  is Not a Palindrome"%(num))

print("Digit\tFrequency")
for i in range(0,10):
    count=0
    temp2=num
    while temp2>0:
        digit=temp2%10
        if digit==i:
            count=count+1
        temp2=temp2//10
    if count>0:
        print(i,"\t",count)

Output:

Enter a number: 789923
The Entered Number 789923  is Not a Palindrome
Digit	Frequency
2 	 1
3 	 1
7 	 1
8 	 1
9 	 2

3. Defined as a function F as Fn = Fn-1 + Fn-2. Write a Python program which accepts a value for N (where N >0) as input and pass this value to the function. Display suitable error message if the condition for input value is not followed.

Source Code:

# Function for nth Fibonacci number
def Fibonacci(n):
    if n == 1:
        return 0
    elif n == 1 or n == 2:
        return 1
    else:
        return Fibonacci(n-1) + Fibonacci(n-2)

count = 1
N = int(input("Enter a value of N : "))
if N<=0:
    print("Invalid Input: Enter a value of N (>0)")
else:
    print("Fibonacci sequence : ")
    while count <= N:
       print(Fibonacci(count),end=' ')
       nexterm = t1 + t2
       # update values
       t1 = t2
       t2 = nexterm
       count += 1

Output:

Enter a value of N : 10
Fibonacci sequence : 
0 1 1 2 3 5 8 13 21 34 

4. Develop a python program to convert binary to decimal, octal to hexadecimal using functions.

Source code for binary to decimal: :

def bintodecima(b_num):
    value = 0
    for i in range(len(b_num)):
        digit = b_num.pop()
        if digit == '1':
            value = value + pow(2, i)
    return value
b_num = list(input("Input a binary number: "))
value = bintodecima(b_num)
print("The decimal value of the number is", value)

Output:

Input a binary number: 100
The decimal value of the number is 4

Source code for octal to hexadecimal:

# Octal to Hexadecimal using List and while Loop
print("Enter the Octal Number: ")
octnum = int(input())

chk = 0
i = 0
decnum = 0
while octnum!=0:
    rem = octnum%10
    if rem>7:
        chk = 1
        break
    decnum = decnum + (rem * (8 ** i))
    i = i+1
    octnum = int(octnum/10)

if chk == 0:
    i = 0
    hexdecnum = []
    while decnum != 0:
        rem = decnum % 16
        if rem < 10:
            rem = rem + 48
        else:
            rem = rem + 55
        rem = chr(rem)
        hexdecnum.insert(i, rem)
        i = i + 1
        decnum = int(decnum / 16)

    print("\nEquivalent Hexadecimal Value is: ")
    i = i - 1
    while i >= 0:
        print(end=hexdecnum[i])
        i = i - 1
    print()

else:
    print("\nInvalid Input!")

Output :

Enter the Octal Number: 
7302

Equivalent Hexadecimal Value is: 
EC2

5. Write a Python program that accepts a sentence and find the number of words, digits, uppercase letters and lowercase letters.

Source Code:

sentence = input("Enter a sentence: ")
(words, digits, upper, lower) = (0, 0, 0, 0)
l_w = sentence.split()
words =  len(l_w)
for ch in sentence:
    if ch.isdigit():
        digits = digits + 1
    elif ch.isupper():
        upper = upper + 1
    elif ch.islower():
        lower = lower + 1

print ("No of Words: ", words)
print ("No of Digits: ", digits)
print ("No of Uppercase letters: ", upper)
print ("No of Lowercase letters: ", lower)

Output :

Enter a sentence: I am Palguni GT and My usn is 12345_MCE
No of Words:  9
No of Digits:  5
No of Uppercase letters:  8
No of Lowercase letters:  17

6. Write a Python program to find the string similarity between two given strings

Sample Output:
Original string:
Python Exercises
Python Exercises
Similarity between two said strings:
1.0
Sample Output:
Original string:
Python Exercises
Python Exercise
Similarity between two said strings:
0.967741935483871

Source Code:

Output:

7. Write a python program to implement insertion sort and merge sort using lists

Source Code:

Output:

8. Write a program to convert roman numbers in to integer values using dictionaries.

Source Code:

Output:

9. Write a function called isphonenumber () to recognize a pattern 415-555-4242 without using regular expression and also write the code to recognize the same pattern using regular expression.

Source Code:

Output:

10. Develop a python program that could search the text in a file for phone numbers (+919900889977) and email addresses (sample@gmail.com)

Source Code:

Output:

11. Write a python program to accept a file name from the user and perform the following operations : 1. Display the first N line of the file and 2.Find the frequency of occurrence of the word accepted from the user in the file

Source Code:

Output:

12.Write a python program to create a ZIP file of a particular folder which contains several files inside it.

Source Code:

Output:

13.By using the concept of inheritance write a python program to find the area of triangle, circle and rectangle.

Source Code:

Output:

14.Write a python program by creating a class called Employee to store the details of Name, Employee_ID, Department and Salary, and implement a method to update salary of employees belonging to a given department.

Source Code:

Output:

15. Write a python program to find the whether the given input is palindrome or not (for both string and integer) using the concept of polymorphism and inheritance.

Source Code:

Output:

16. Write a python program to download the all XKCD comics

Source Code:

Output:

17. Demonstrate python program to read the data from the spreadsheet and write the data in to the spreadsheet

Source Code:

Output:

18. Write a python program to combine select pages from many PDFs

Source Code:

Output:

19. Write a python program to fetch current weather data from the JSON file

Source Code:

Output:

Part B (Practical Based Learning ):

A problem statement for each batch is to be generated in consultation with the co-examiner and student should develop an algorithm, program and execute the program for the given problem with appropriate outputs.