我试图编写一个跨平台工具，它运行特定的命令，期望某些输出进行验证，并发送特定的输出(如用户名/密码)进行身份验证。

在Unix上，我成功地编写了一个使用 pexpect 库(通过 pip install pexpect )的Python工具。这段代码工作得很完美，正是我想要做的。我提供了我的代码的一小部分，以证明概念如下：

self.process = pexpect.spawn('/usr/bin/ctf', env={'HOME':expanduser('~')}, timeout=5)
self.process.expect(self.PROMPT)
self.process.sendline('connect to %s' % server)
sw = self.process.expect(['ERROR', 'Username:', 'Connected to (.*) as (.*)'])
if sw == 0:
elif sw == 1:
    asked_for_pw = self.process.expect([pexpect.TIMEOUT, 'Password:'])
    if not asked_for_pw:
        self.process.sendline(user)
        self.process.expect('Password:')
    self.process.sendline(passwd)
    success = self.process.expect(['Password:', self.PROMPT])
    if not success:
        self.process.close()
        raise CTFError('Invalid password')
elif sw == 2:
    self.server = self.process.match.groups()[0]
    self.user = self.process.match.groups()[1].strip()
else:
    info('Could not match any strings, trying to get server and user')
    self.server = self.process.match.groups()[0]
    self.user = self.process.match.groups()[1].strip()
info('Connected to %s as %s' % (self.server, self.user))

我尝试在Windows上运行相同的源代码(将 /usr/bin/ctf 更改为 c:/ctf.exe )，并收到一条错误消息：

Traceback (most recent call last):