Data Representation In Python ?

To represent the data in Python Programming. we require 3 things -

• 1) Literals
• 2) Data type
• 3) Identifiers/Variables

Literals:- Literals are nothing but input Values passing to the program.

for e.g. → 

• Numeric Literals
• Boolean Literals
• String Literals.

• All the literals are stored in main memory by allocating sufficient amount of memory by the help. of data types.
• то process these Values or literals stored in main memory, as programmer, we must give distinct names to the Created memory Space.
• Since the distinct names makes us to identify the literals/Values for processing hence distinct names. are called "Identifiers".
• Programmatically, Identifier values can Changed during execution of the program and hence Identifiers are called "Variables".
• Hence all types of values or inputs must be Stored in main memory in the form of variables.
  
  

========== Definition of Variable ==========

• A Variable is an Identifier, whose values Can be Changed during execution of the program.
• All the Variables in Python are Called Objects.
• Behind of all Objects, There exist a Class.

========== Rules for using Variables in Python Programming ==========

• A Variable name is a Combination of Alphabets, digits and a special symbol ex : Underscore (_)
• The first letter of Variable name must starts with alphabet or Underscore (_)
• Within the Variable name, special Symbols are not allowed except Underscore (_)

4) No Keywords to be used as Variable names because all the keywords are having special meaning to the Language Compilers.

5) All Pre-defined Class names (int, float, etc) Can be used as Variable names.

6) All the Variable name  as Case-sensitive.