Python Basic Programs By Devansh Mishra.

Basic programs are given of python which is very useful for Python Beginner's. 

1.Hello World

print("Hello World")

2.Square Root 

number = int(input("enter a number: "))

sqrt = number ** 0.5

print("square root:", sqrt)

3. cube Root

def cube_root(x):

        return x**(1/3)

print(cube_root(27))

4. Fahrenheit to Celsius

temp = float(input("Enter temperature in Fahrenheit: "))

celsius = (temp - 32) * 5/9

print(f"{temp} in Fahrenheit is equal to {celsius} in Celsius")

 

5. Area of Triangle

Height = float(input("Enter Height: "))

Base = float(input("Enter Base: "))

ans = (0.5) * Height * Base

print("Area Of Triangle", ans)

6. Area of Circle

rad = float(input("Enter Radius Of Circle :"))

area = 3.14 * rad * rad

print("Area of Circle", area)

7. Armstrong Number in Python

from math import *

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

result = 0

n = 0

temp = number;

while (temp != 0):

    temp =int(temp / 10)

    n = n + 1

temp = number

while (temp != 0):

    remainder = temp % 10

    result = result + pow(remainder, n)

    temp = int(temp/10)

if(result == number):

    print("Armstrong number")

else:

    print("Not an Armstrong number")

8.  Palindrome No. In python

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

temp=n

rev=0

while(n>0):

    dig=n%10

    rev=rev*10+dig

    n=n//10

if(temp==rev):

    print("The number is a palindrome!")

else:

    print("The number isn't a palindrome!")

9. Fibonacci Series

def FiboRecursion(n):  

   if n <= 1:  

       return n  

   else:  

       return(FiboRecursion(n-1) + FiboRecursion(n-2))  

 

nterms = int(input("Enter the terms? ")) 

if nterms <= 0:

   print("Please enter a positive integer")  

else:  

   print("Fibonacci sequence:")  

   for i in range(nterms):  

       print(FiboRecursion(i)) 0;

}

10.  Convert Decimal to Binary in Python

def decimalToBinary(num):

    if num > 1:

        decimalToBinary(num // 2)

    print(num % 2, end='')

number = int(input("Enter any decimal number: "))

decimalToBinary(number)

11. Convert Binary to Decimal using Python

b_num = list(input("Enter a binary number: "))

value = 0

for i in range(len(b_num)):

 digit = b_num.pop()

 if digit == '1':

  value = value + pow(2, i)

print("The decimal value of the number is", value)

    

12. Prime No. 

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

if number > 1:

    for i in range(2, number):

        if (number % i) == 0:

            print(number, "is not a prime number")

            break

    else:

        print(number, "is a prime number")

else:

    print(number, "is not a prime number")

    

13. 1 to 100 Prime Number

Number = 1

while(Number <= 100):

    count = 0

    i = 2

    

    while(i <= Number//2):

        if(Number % i == 0):

            count = count + 1

            break

        i = i + 1

    if (count == 0 and Number != 1):

        print(" %d" %Number, end = ' ')

    Number = Number + 1

    

14. Comparing two strings using Python

str1 = input("Enter String 1 ")

str2 = input("Enter String 2 ")

if(str1 != ""):

    if(str1 == str2):

        print("string is Equal")

    else:

        print("string is not Equal")

else:

    print("pls Enter String to check !!!!!!!1")

    

15. Sum on N numbers

num = int(input("How many Numbers sum you Want? : "))  

  

if num < 0:  

   print("Enter a positive number")  

else:  

   sum = 0  

   while(num > 0):  

       sum += num  

       num -= 1  

   print("The sum is",sum)  

    

16. Swap two numbers

number1 = input('Enter First Number: ')

number2 = input('Enter Second Number: ')

print("Value of number1 before swapping: ", number1)

print("Value of number2 before swapping: ", number2)

temp = number1

number1 = number2

number2 = temp

print("-------------------------------------")

print("Value of number1 after swapping: ", number1)

print("Value of number2 after swapping: ", number2)

   

17. Print Date Program using Python

import datetime

now = datetime.datetime.now()

print ("Current date and time : ")

print (now.strftime("%Y-%m-%d %H:%M:%S"))

  

18. Count words in Sentence Program in Python

test_string = input("Enter String :")

print ("The original string is : " + test_string)

res = len(test_string.split())

print ("The number of words in string are : " + str(res)) 

     

19. Program for Shutdown and restart in Python 

 

import os 

  

shutdown = input("Do you wish to shutdown your computer ? (yes / no): ") 

  

if shutdown == 'no': 

    exit() 

else: 

    os.system("shutdown /s /t 1") 

     

20. Factorial of a number

n = input("Enter a number: ")

factorial = 1

if int(n) >= 1:

    for i in range (1,int(n)+1):

        factorial = factorial * i

    print("Factorial of ",n , " is : ",factorial) 

     

21. Palindrome String in Python

string = input("Please enter your own String : ")

if(string == string[:: - 1]):

   print("This is a Palindrome String")

else:

   print("This is Not a Palindrome String") 

     

22. Convert lowercase string to Uppercase in Python

text = input("Enter String :")

print("Original String:") 

print(text) 

print("\nConverted String:") 

print(text.upper()) 

     

23. Find sum of digits in Python

def getSum(n): 

sum = 0

for digit in str(n): 

    sum += int(digit)  

return sum

n = input("Enter Number: ")

print(getSum(n))  

     

24. Odd Even No. 

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

if (num % 2) == 0:  

   print("{0} is Even number".format(num))  

else:  

   print("{0} is Odd number".format(num))