Python Variables

Creating Variables:

Unlike other programming languages, Python has no command for declaring a variable.

A variable is created the moment you first assign a value to it.

Example

x = 10  # x is a int type variabe 
y = "Python" # y is the string type variable
print(x)
print(y)

Variable Names

A variable can have a short name (like x and y) or a more descriptive name (age, carname, total_volume). Rules for Python variables:

• A variable name must start with a letter or the underscore character
• A variable name cannot start with a number
• A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
• Variable names are case-sensitive (age, Age and AGE are three different variables)
• Remember that variables are case-sensitive  

Q1:-Write a Python Program takes two number and sum that

Program:

x = int(input("Enter first number:")# input method return a string 
y = int(input("Enter second Number:") # for type casting use int(),float()
print(x + y)