Collecting user input

input([prompt]) Accepting user input

prompt: (optional) String ( message ) to be shown to user

By default all inputs are of String data type.

Getting user input in Python & printing output after converting into integer by using int() function

Displaying input box to accept user inputs

x1=input("Enter first number: ")
x2=input("Enter second number: ")
print("Total :",x1+x2)

Output

Enter first number: 3
Enter second number: 4
Total : 34

Why the output is not equal to 7 with input of 3 and 4 as input numbers ?

As all user inputs are string data type ( by default ) , we have to convert the type by using int()

x1=int(input("Enter first number: "))
x2=int(input("Enter second number: "))
print("Total :",x1+x2)

Output

Enter first number: 3
Enter second number: 4
Total : 7

Float input

Used float() to convert string to float data type.

x1=float(input("Interest Rate is : "))
print ("interest rate ",x1)

Output

Interest Rate is : 5.6
interest rate  5.6

Use one input box and a for loop to ask user to enter three numbers, display the sum of three input numbers.

sum=0
for i in range(3):
    x1=int(input('Enter a number'))
    sum=sum+x1
print("Sum : ", sum)

What is the sum of two numbers provided by the user, and how can we ensure valid numerical input?

def get_number(message):
    while True:
        user_input = input(message)

        try:
            number = float(user_input)
            return number
        except ValueError:
            print("Invalid input. Please enter a number only.")


num1 = get_number("Enter first number: ")
num2 = get_number("Enter second number: ")

total = num1 + num2

print("The sum is:", total)

Try running the code and enter 30.4 as the first number and 50.3 as the second number. Then, analyze the output.
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Subhendu Mohapatra

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input()

Displaying input box to accept user inputs

Float input

Subhendu Mohapatra