subprocess.py 文件源码

def _on_child(self, watcher):
        watcher.stop()
        status = watcher.rstatus
        if os.WIFSIGNALED(status):
            self.returncode = -os.WTERMSIG(status)
        else:
            self.returncode = os.WEXITSTATUS(status)
        self.result.set(self.returncode)