Python Variables

Variables are saved memory areas to store values. This implies that once you make a variable you save a few spaces in memory.

A Python variable is a typical title that is a reference to an object. The information itself is still contained inside the object. Once an object is relegated to a variable, you’ll refer to the question by that title. It is the basic unit of storage in a program.

Variable Assignment:

To assign any value to the python variables use a single equal sign ( = ). Variable is the name attached to the object. To create a variable just assign a value to it and then it can be used easily.

a = 10          # Assigning integer 
b = 109.0       # Assigning floating point
print (a)
print (b)

Rules for Naming Variable:

There are some rules to name any python variable. some are given as below,

  • A variable name must start with a letter or the underscore character.
  • Variable can be of any length.
  • A variable name cannot start with a number.
  • Variable names are case-sensitive.
  • In a variable name, Whitespace is not allowed.
  • A variable name can only contain underscores and alphanumeric characters.
  • Reserved words are not allowed as variable names.