In Python, identifiers are the names used to identify variables, functions, classes, modules, and other objects. They follow specific rules and conventions: Rules for Identifiers in Python Can contain letters (a-z, A-Z), digits (0-9), and underscores (_). Cannot start with a digit (e.g., 1variable is invalid). Cannot be a keyword (e.g., class, def, if, etc.). Case-sensitive (Va... https://docs.vultr.com/python/standard-library/str/isidentifier