Question

What are variable ? What are the rules for naming a variable?​

Answer 1

the rules and conventions for naming your variables can be summarized as follows:

variable names are case-sensitive. ...

subsequent characters may be letters, digits, dollar signs, or underscore characters. ...

if the name you choose consists of only one word, spell that word in all lowercase letters.

Answer 2

Answer:

$\large\mathsf{\underline\green{Answer:-}}$

• What are Variables?

$\large\mathsf{\underline\red{Solution:-}}$ Variables are the named memory location created in the main memory of computer , used to store data. During the program execution , this location are created and identified by the name given by the user. Using variables, Values are stored and manipulated to produce the desired results.

• What are the Rules for Naming Variables?

$\large\mathsf{\underline\red{Solution:-}}$ To form valid variable name is python, you should always follow certain rules for naming variable. These rules are as follow:

☞ Variable name should be meaningful so that they are easy to remember too.

☞ Variable name can be of any size.

☞ Variable name can have characters a-z, A-Z, 0-9 and Underscore(_).

☞ Variable name should begin with the letter or underscore.

☞ Variable name are case sensitive. e.g. 'total' and 'TOTAL' are not same.

☞ always remember that variable name should be a keyword such as else, print, if, etc.