Function run 

pub fn run(builder: InterpreterBuilder) -> ExitCode

The main cli of the rustpython interpreter. This function will return std::process::ExitCode based on the return code of the python code ran through the cli.

Note: This function provides no way to further initialize the VM after the builder is applied. All VM initialization (adding native modules, init hooks, etc.) must be done through the InterpreterBuilder parameter before calling this function.