https://docs.vultr.com/python/....standard-library/str
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 (Var and var are different identifiers).
Can be of any length, but should be meaningful.
No special characters like @, $, % are allowed.
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