Python

1: Print Function
2: Escape Sequence
3: Comments
4: Escape Sequence as Normal Text
5: Print Emoji
6: Python as Calculator
7: Strings Concatenation
8: Input
9: int function
10: Variables
11: String Formatting
12: String Indexing
13: String Slicing
14: Step Argument
15: Some useful function and methods
16: Strip Method
17: Find and Replace method
18: Center method
19: If Statement
20: If else statement
21: Nested if-else Statement
22: if-elif-else statement
23: while loop
23.1: Example 1 while loop
23.2: Example 2 while loop
23.3: Example 3 while loop
24: Infinite loop
25: for loop
25.1: Example 1 for loop
26: break and continue statement
27: for loop with string

Chapter 9: int function

If we need to perform mathematical calculations with user input, we must convert the input to an integer using the int() function; otherwise, it will default to a string. While two strings can be concatenated, mathematical operations require the strings to be converted to integers first. To simplify this, we use the int() function for conversion.

 

num1 = input("Enter number one: ") # prompt the user to enter a value

num2 = input("Enter number two: ") # prompt the user to enter a value

num1 = int(num1)

num2 = int(num2)

sum = num1 + num2

print("The sum of these two numbers is: " + str(sum))

Output: 

Enter number one: 5

Enter number two: 7

The sum of these two numbers is: 12