Python Variables

What is a Variable in Python? 

• A Python variable is a reserved memory location to store values. 

• In other words, a variable in a python program gives data to the computer for processing. 

   

  

  Example :-

              x = 5
              y = "Rahul"
              print(x)
              print(y)
  

  Example :-

       >>> n = 1000
       >>> print(n)
       1000
       >>> n
       1000

   

  

Variable Names

• A variable can have a short name ( x and y) or a more descriptive name.
•  Rules for Python variables:

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