CapWords
CapWords is a naming convention in which a single compound identifier is written without spaces or separators, and each word in the name begins with a capital letter. It is essentially the same as PascalCase, and is sometimes used interchangeably with CamelCase, though some style guides distinguish CamelCase as starting with a lowercase first word (lowerCamelCase) and CapWords/PascalCase as starting with an uppercase first word.
In Python, CapWords is the standard convention for class and exception names. The Python Enhancement Proposal
Beyond Python, the general idea appears in several languages that favor CamelCase or PascalCase for type names
Overall, CapWords serves as a recognizable, language-appropriate convention for naming types and built-in constructs, promoting consistency