def serialized(self):
        to_ret = {}
        for group, requirements in self.items():
            to_ret[group] = [str(requirement) for requirement in requirements]
        return to_ret
def exceptions_log_path(cls, for_pid=None, in_dir=None):
        """Get the path to either the shared or pid-specific fatal errors log file."""
        if for_pid is None:
            intermediate_filename_component = ""
        else:
            assert isinstance(for_pid, Pid)
            intermediate_filename_component = ".{}".format(for_pid)
        in_dir = in_dir or cls._log_dir
        return os.path.join(
            in_dir, ".pids", "exceptions{}.log".format(intermediate_filename_component)
        )