Variables should always have descriptive names for better readability and maintainability. However, concise names like x, y, or temp are acceptable when the context is clear and unambiguous.

The preferred way to name variables in Python is to use snake_case, where words are written in lowercase and separated by underscores.

Regardless of the naming style, variable names must always follow established naming rules and conventions.

Python will raise an error if variable names violate naming rules, such as starting with a number, using spaces, special characters, reserved keywords, or invalid characters.