Variables/Identifiers

What is a Variables?

A Variables is a container used to store data values in program.
Example:

name = "Python"
age = 21

Variable Naming Conventions:

• Can contain letters, numbers, and underscore(_)
• Must start with a letter or underscore
• Cannot start with a number
• Cannot contain spaces
• Cannot use Python keywords
• special characters are not allowed

Multi-words Variable Names:

• Camel Case - Each word except the first, start with a capital letter.

Example:

studentName
employeeSalary

• Pascal Case - Each word start with a capital letter.

Example:

StudentName
EmployeeSalary

• Snake Case - each word is separated by an underscore character.

Example:

student_name
employee_salary