code: def execute_executable(nova_args, env_vars):
      
      process = subprocess.Popen(nova_args,
                                 stdout=sys.stdout,
                                 stderr=subprocess.PIPE,
                                 env=env_vars)
      process.wait()
      return process
docs: Executes the executable given by the user.
  
      Hey, I know this method has a silly name, but I write the code here and
      I'm silly.