vterm.py 文件源码

def spawn(self):
        env = self.env
        env['TERM'] = 'linux'

        self.pid, self.master = pty.fork()

        if self.pid == 0:
            if callable(self.command):
                try:
                    try:
                        self.command()
                    except:
                        sys.stderr.write(traceback.format_exc())
                        sys.stderr.flush()
                finally:
                    os._exit(0)
            else:
                os.execvpe(self.command[0], self.command, env)

        if self.main_loop is None:
            fcntl.fcntl(self.master, fcntl.F_SETFL, os.O_NONBLOCK)

        atexit.register(self.terminate)