Install Window

Unit-5 programs

 

Program-1:

Aim: Python program to check whether a JSON string contains complex object or not.

Program:

import json

def has_complex_object(json_str):

    try:

        data=json.loads(json_str)

        for value in data.values():

            if isinstance(value,(list,dict)):

                return True

            return False

    except json.JSONDecodeError:

        return False

json_str1='{"name":"ravi","age":30,"city":"vijayawada"}'

json_str2='{"name":"kumar","age":25,"contact":{"email":"ravi@gmail.com","phone":"8273672682"}}'

print(has_complex_object(json_str1))

print(has_complex_object(json_str2))

program-2:

Aim: Python program to demonstrate Numpy arrays creation using array() function.

Program:

import numpy as np

def create_numpy_array():

    arr=np.array([1,2,3,4,5])

    return arr

arr=create_numpy_array()

print("Numpy Array:",arr)

Program-3:

Aim: Python program to demonstrate use of ndim, shape, size, dtype in Numpy array.

Program:

import numpy as np

def numpy_array_properties():

    arr=np.array([[1,2,3],[4,5,6]])

    print("Array:")

    print(arr)

    print("Number of dimensions:",arr.ndim)

    print("Shape(rows,columns):",arr.shape)

    print("Size(total number of elements)",arr.size)

    print("Data type of elements:",arr.dtype)

numpy_array_properties()

Program-4:

Aim: Python program to demonstrate basic slicing, integer and Boolean indexing.

Program:

import numpy as np

def numpy_array_operations():

    arr=np.array([1,2,3,4,5])

    print("Slicing examples:")

    print(arr[1:4])

    print(arr[:3])

    print(arr[2:])

    print("\n Integer indexing:")

    print(arr[[0,2,4]])

    print("\nBoolean indexing:")

    print(arr[arr>2])

numpy_array_operations()

Program-5:

Aim: Python program to find min, max, sum, cumulative sum of array using Numpy.

Program:

 import numpy as np

def numpy_array_stats():

    arr=np.array([1,2,3,4,5])

    print("Array:",arr)

    print("Minimum value:",np.min(arr))

    print("Maximum value:",np.max(arr))

    print("Sum of array elements:",np.sum(arr))

    print("Cumulative sum of array elements:",np.cumsum(arr))

numpy_array_stats()  

Program-6:

Aim: Create a dictionary, convert it to a pandas DataFrame, and  explore data.

Program:

import pandas as pd

def create_dataframe_from_dict():

    data = {

        'Name': ['rahul', 'ravi', 'vamsi', 'sai', 'venu'],

        'Age': [21, 22, 23, 24, 25],

        'City': ['vijayawada', 'kondapalli', 'Mylavaram', 'IBM', 'Konduru'],

        'Salary': [800000, 700000, 800000, 400000, 800000]  # Corrected length

    }

    df = pd.DataFrame(data)

    return df

 

df = create_dataframe_from_dict()

print("Head of DataFrame:")

print(df.head())

print("\nData selection operations:")

print("Selecting column 'Name':")

print(df['Name'])

print("\nFiltering based on age > 22:")

print(df[df['Age'] > 22])

python unit-4

 Unit-4 programs

Program-1:

Aim: Write a python program to sort words in a file and put them in another file. The output file should have only lowercase words, so any uppercase words from source must be lowered.

Program:

def sort_words(input_file,output_file):

    with open(input_file,'r') as file:

        words=file.read().split()

    words=sorted([word.lower() for word in words])

    with open(output_file,'w') as file:

        file.write("\n".join(words))

input_file='input.txt'

output_file='output.txt'

sort_words(input_file,output_file)

print(f"words sorted and saved to'{output_file}'")

 

output:

Program-2:

Aim: Python program to print each line of a file in reverse order.

Program:

def reverse_lines(input_file):

    with open(input_file,'r')as file:

        lines=file.readlines()

    for line in reversed(lines):

        print(line.rstrip())

 

input_file='input.txt'

reverse_lines(input_file)

 

output:

Program-3:

Aim: Python program to compute the number of characters, words and lines in a file.

Program:

def count_chars_words_lines(input_file):

    with open(input_file,'r')as file:

        lines=file.readlines()

    num_lines=len(lines)

    num_words=sum(len(line.split())for line in lines)

    num_chars=sum(len(line)for line in lines)

    print(f"Number of lines:{num_lines}")

    print(f"Number of words:{num_words}")

    print(f"Number of characters:{num_chars}")

input_file='input.txt'

count_chars_words_lines(input_file)

 

output:

Program-4:

Aim: Write a program to create, display, append, insert and reverse the order of the items in the array.

Program:

class ArrayOperations:

    def __init__(self):

        self.array=[]

    def create_array(self,elements):

        self.array=elements

    def display_array(self):

        print("Array:",self.array)

    def append_element(self,element):

        self.array.append(element)

    def insert_element(self,index,element):

        self.array.insert(index,element)

    def reverse_array(self):

        self.array.reverse()

arr=ArrayOperations()

arr.create_array([1,2,3,4,5])

arr.display_array()

arr.append_element(6)

arr.display_array()

arr.insert_element(2,10)

arr.display_array()

arr.reverse_array()

arr.display_array()

 

output:

Program-5:

Aim: Write a program to add, transpose, and multiply two matrices.

Program:

matrix1 = [[1, 2, 3],[4, 5, 6],[7, 8, 9]]

matrix2 = [[9, 8, 7],[6, 5, 4],[3, 2, 1]]

add_r=[[matrix1[i][j] + matrix2[i][j] for j in range(len(matrix1[0]))] for i in range(len(matrix1))]

transpose_r=[[matrix1[j][i] for j in range(len(matrix1))] for i in range(len(matrix1[0]))]

multiply_r=[[sum(matrix1[i][k] * matrix2[k][j] for k in range(len(matrix1[0]))) for j in range(len(matrix2[0]))] for i in range(len(matrix1))]

print("Matrix Addition:")

for row in add_r:

  print(row)

print("\nMatrix Transpose:")

for row in transpose_r:

  print(row)

print("\nMatrix Multiplication:")

for row in multiply_r:

  print(row)

 

output:

Program-6:

Aim: Write a python program to create a class that represents a shape. Include methods to calculate its area and perimeter. Implement subclasses for different shapes like circle, triangle, and square.

Program:

import math

class Shape:

    def area(self):

        pass

    def perimeter(self):

        pass

class Circle(Shape):

    def __init__(self,radius):

        self.radius=radius

    def area(self):

        return math.pi*self.radius

class Triangle(Shape):

    def __init__(self,base,height,side1,side2):

        self.base=base

        self.height=height

        self.side1=side1

        self.side2=side2

    def area(self):

        return 0.5*self.base*self.height

    def perimeter(self):

        return self.base+self.side1+self.side2

class Square(Shape):

    def __init__(self,side):

        self.side=side

    def area(self):

        return self.side**2

    def perimeter(self):

        return 4*self.side

circle=Circle(5)

print("Circle Area:",circle.area())

print("Circle Perimeter:",circle.perimeter())

triangle=Triangle(3,4,5,5)

print("\n Triangle Area:",triangle.area())

print("Triangle Perimeter:",triangle.perimeter())

square=Square(4)

print("\nSquare Area:",square.area())

print("Square Perimeter:",square.perimeter())

 

output:

python unit-3 programs

 

Program-1:

Aim: Write a program to create tuples (name, age, address, college) for at least two members and concatenate the tuples and print the concatenated tuples.

Program:

t1=('revanth',19,'vijayawada','LBRCE college')

t2=('kumar',20,'mylavaram','CMR college')

con_tuple=t1+t2

print(con_tuple)

output:

 

 

 

program-2:

Aim: Write a program to count the number of vowels in a string (No control flow allowed).

Program:

string="pythonprogramming"

vowel_count=len([char for char in string if char in 'aeiouAEIOU'])

print(vowel_count)

output:

program-3:

Aim : Write a program to check if a given key exists in a dictionary or not.

Program:

dict={'a':1,'b':2,'c':3}

check='b'

exists=check in dict

print(exists)

output:

program-4:

Aim: Write a program to add a new key-value pair to an existing dictionary

Program:

dict={'a':1,'b':2}

dict['c']=3

print(dict)

output:

program-5:

Aim: Write a program to sum all the items in a given dictionary.

Program:

dict={'a':10,'b':20,'c':30}

total_sum=sum(dict.values())

print(total_sum)

output:

pyhton unit-2 programs

 

Program-1:

Aim: Write a python program to define a function with multiple return values.

Program:

def operations(x,y):

    sum=x+y

    sub=x-y

    mul=x*y

    return sum,sub,mul

sum,sub,mul=operations(25,15)

print("sum:",sum)

print("sub:",sub)

print("mul:",mul)

Output:

(Or)

def operations(x,y):

    sum=x+y

    sub=x-y

    mul=x*y

    return sum,sub,mul

sum,sub,mul=operations(25,15)

print("sum:",sum)

print("sub:",sub)

print("mul:",mul)

program-2:

Aim: Write a python program to define a function using default arguments.

Program:

def defaultArgs(a=10,b=15,c=30):

    print(a,b,c)

    return

defaultArgs()

Output:

(or)

def area_rect(height=1,length=1):

    area=height*length

    print(area)

area_rect(10,10)

output:

Program-3:

Aim: Write a python program to find the length of the string without using any library functions.

Program:

string=input("Enter the string:")

count=0

for i in string:

    count=count+1

print("Length of the given string is: ", count)

Output:

Program-4:

Aim: Write a python program to check if the substring is present in the given string.

Program:

s1=input("Enter String:")

s2=input("Enter Sub_string:")

if(s1.find(s2)==-1):

    print("Sub_string not found in s1.")

 

else:

    print("Sub_string in s1.")

output:

Enter String:hai python programming

Enter Sub_string:python

Sub_string in s1.

 

 

 

 

 

 

 

Program-5:

Aim: Write a python program to perfrom the given operations on a list.

1)Addition 2)insertion 3)slicing

Program:

list = [10, 20, 30, 40, 50]

print("Actual list:",list)#Initialize

list.append(60)

print("After addition:",list)# Addition

list.insert(2, 25)

print("After insertion:",list)# Insertion

sublist = list[1:4]

print("Sliced list:", sublist)#Slicing

output:

Program-6:

Aim: Write a python program to perform any 5 built-in functions by taking any list.

Program:

list=[10,20,30,40,50]

print("Acutal:",list)

list.append(60)

print("After append:",list)

list.remove(20)

print("After remove:",list)

pop=list.pop()

print("pop element:",pop)

print("After pop:",list)

list.sort()

print("After sort:",list)

list.reverse()

print("After reverse:",list)

output:

 

 

 

 

python unit-1 programs

Program 1:

Aim: Write a python program to find the largest element among three Numbers

Program:

a=int(input("Enter a value :"))

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

c=int(input("Enter c value :"))

if((a>b)&(a>c)):

    print("a is big",a)

elif(b>c):

    print("b is big",b)

else:

    print("c is big",c)

 

Output:

 

 

 

 

 

 

 

 

 

 

 

Program 2:

Aim: Write a python program for all prime numbers with in range.

Program:

min=int(input("Enter min number"))

max=int(input("Enter max number"))

for i in range(min,max):

    count=0

    for j in range(1,i+1):

        if(i%j==0):

            count+=1

    if(count==2):

        print(i)

Output:

Program 3:

Aim: Write a python program to swap two numbers without using a temporary variable.

Program:

a,b=10,20

a,b=b,a

print(a,b)

output:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Program 4.1:

Aim: Demonstrate the following Operators in python with examples

a    Arithmetic Operators

Program:

a=10

b=5

print("a+b=",a+b)

print("a-b=",a-b)

print("a*b=",a*b)

print("a/b=",a/b)

print("a//b=",a//b)

print("a**b=",a**b)

Output:

 

 

 

 

 

 

 

 

 

 

 

Program 4.2:

Aim: Demonstrate the following Operators in python with examples

b    Relational Operators

Program:

a=10

b=20

print("a<b=",a<b)

print("a>b=",a>b)

print("a<=b=",a<=b)

print("a>=b=",a>=b)

print("a==b=",a==b)

print("a!=b=",a!=b)

Output:

 

 

 

 

 

 

 

 

 

 

 

Program 4.3:

Aim: Demonstrate the following Operator in python with examples

c)Assignment Operators:

Program:

#1. = (Simple Assignment)

x = 10

print(x)

#2. += (Addition Assignment)

x = 10

x += 5 

print(x)

#3. -= (Subtraction Assignment)

x = 10

x -= 3

print(x)

#4. *= (Multiplication Assignment)

x = 4

x *= 2 

print(x)

#5. /= (Division Assignment)

x = 20

x /= 4 

print(x)

 

#6. //= (Floor Division Assignment)

x = 20

x //= 3 

print(x)

#7. %= (Modulus Assignment)

x = 2

x **= 3 

print(x)

#9. &=, |=, ^=, <<=, >>= (Bitwise Assignment Operators)

x = 10 

x &= 4  

print(x) 

x = 10 

x |= 4  

print(x) 

x = 10 

x ^= 4  

print(x) 

x = 10 

x <<= 2 

print(x) 

x = 10 

x >>= 2

print(x) 

Output:

Program 4.4:

Aim: Demonstrate the following Operator in python with examples

d)Logical Operators:

Program:

x = 5

y = 10

# Both conditions must be true for the result to be true

result = (x > 3) and (y < 20) 

print(result) 

result = (x > 3) and (y > 20) 

print(result) 

# At least one condition must be true for the result to be true

result = (x > 3) or (y > 20) 

print(result) 

result = (x < 3) or (y > 20) 

print(result) 

x = 5

# The not operator reverses the result

result = not (x > 3) 

print(result)

result = not (x < 3) 

print(result) 

Output:

Program 4.5:

Aim: Demonstrate the following Operator in python with examples

e)Bit Wise Operators:

Program:

a=5

b=3

print("a&b=",a&b)

print("a|b=",a|b)

print("a^b=",a^b)

print("~a",~a)

print("a<<1=",a<<1)

print("a>>1=",a>>1)

Output:

Program 4.6:

Aim: Demonstrate the following Operator in python with examples

f)Ternary Operators:

Program:

#Basic Ternary Operator

x = 10

result = "Even" if x % 2 == 0 else "Odd"

print(result)

#Using Ternary Operator to Assign a Value

age = 18

status = "Adult" if age >= 18 else "Minor"

print(status)

#Nested Ternary Operator

x = 5

y = 10

result = "x is greater" if x > y else "x is equal to y" if x == y else "x is less"

print(result)

# Using Ternary Operator with Functions

def check_number(num):

    return "Positive" if num > 0 else "Negative" if num < 0 else "Zero"

print(check_number(10))  

print(check_number(-5)) 

print(check_number(0))   

#Assigning Multiple Values

x = 15

y = 10

a, b = ("x is greater", "y is greater") if x > y else ("y is greater", "x is greater")

print(a, b) 

Output:

Program 4.7:

Aim: Demonstrate the following Operator in python with examples

g)Membership Operators:

Program:

#Using in Operator

fruits = ["apple", "banana", "cherry"]

print("banana" in fruits) 

print("orange" in fruits)

#Using not in Operator

fruits = ["apple", "banana", "cherry"]

print("orange" not in fruits) 

print("banana" not in fruits)

Output:

Program 4.8:

Aim: Demonstrate the following Operator in python with examples

h)Identity Operators:

Program:

#Using is Operator

a = 5

b = 5

print(a is b)

#Using is not Operator

a = 10

b = 20

print(a is not b) 

 

Output:

Program 5:

Aim: Write a python program to add and multiply complex numbers

Program:

n1=complex(3,4)

n2=complex(1,2)

addr=n1+n2

print("Addcomplex+",addr)

mulr=n1*n2

print("Multiplycomplex+",mulr)

 

Output:

Program 6:

Aim: Write a python program to print multiplication table of a given number

Program:

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

for i in range(1, 11):

    print(f"{num} x {i} = {num * i}")

 

Output: