In Python, variables are used to store data values. Unlike some other programming languages, Python is dynamically typed, meaning you do not need to declare the type of a variable explicitly when you create one. Here are the key aspects of variables in Python:

Variable Naming Rules:

• Naming Conventions:

  • Variable names can contain letters (a-z, A-Z), digits (0-9), and underscores (_).
  • They cannot start with a digit.
  • Variable names are case-sensitive (myVar is different from myvar).

• Keywords:

  • Python keywords (e.g., if, else, for, while, def, class, etc.) cannot be used as variable names.

• Convention:

  • Use descriptive names that convey the purpose of the variable (age, name, total_sum, etc.).
  • Use lowercase letters with words separated by underscores (snake_case) for better readability.