Basic Python Programs

Table of Contents

Python Programs

Program 1 : Print "Hello World!"

Program 2 : Add two numbers with user input

Code:
# Store input numbers num1 = int(input('Enter first number: ')) num2 = int(input('Enter second number: ')) # Add two numbers sum = num1 + num2 # Display the sum print('The sum of {0} and {1} is {2}'.format(num1, num2, sum))
Output:

Program 3 : Program to swap two numbers without using temporary variable

Code:
a=int(input("Enter value of first variable: ")) b=int(input("Enter value of second variable: ")) a=a+b b=a-b a=a-b print("a is:",a," b is:",b)
Output:

Program 4 : Program to reverse a number.

n=int(input("Enter number: "))
rev=0
while(n>0):
 dig=n%10
 rev=rev*10+dig
 n=n//10
print("Reverse of the number:",rev)

Output:

Program 5 : Program to Check Whether a Number is Positive or Negative

Code:
n=int(input("Enter number: ")) if(n>0): print("Number is positive") else: print("Number is negative")
Output:

Program 6 : Program to Take in the Marks of 5 Subjects and Display the Grade

Code:
sub1=int(input("Enter marks of the first subject: ")) sub2=int(input("Enter marks of the second subject: ")) sub3=int(input("Enter marks of the third subject: ")) sub4=int(input("Enter marks of the fourth subject: ")) sub5=int(input("Enter marks of the fifth subject: ")) avg=(sub1+sub2+sub3+sub4+sub4)/5 if(avg>=90): print("Grade: A") elif(avg>=80 and avg<90): print("Grade: B") elif(avg>=70 and avg<80): print("Grade: C") elif(avg>=60 and avg<70): print("Grade: D") else: print("Grade: F")
Output:

Program 7 : Program to Take the Temperature in Celsius and Convert it into Fahrenheit

Code:
celsius=int(input("Enter the temperature in celsius:")) f=(celsius*1.8)+32 print("Temperature in farenheit is:",f)
Output:

Program 8 : Program to Read Height in Centimeters and then Convert the Height to Feet and Inches

Code:
cm=int(input("Enter the height in centimeters:")) inches=0.394cm feet=0.0328cm print("The length in inches",round(inches,2)) print("The length in feet",round(feet,2))
Output: