Notably this is no longer true[0]. While legacy stuff can still use the CapWords styling, snake_case names are preferred for all new methods and functions (incl

Notably this is no longer true[0]. While legacy stuff can still use the CapWords styling, snake_case names are preferred for all new methods and functions (including code that wraps c++). But this is a relatively recent change to the style guide, and the proto libraries far predate it. (As a response to a sibling of the parent, the same rules apply to internal code, CapWords should only be used for consistency within a file. All new code should be embrace it's snakey heritage). [0]: https://google.github.io/styleguide/pyguide.html#3162-naming-conventions https://google.github.io/styleguide/pyguide.html#3162-naming...