python - Paramiko exec_command，超时不工作

Question

设置:paramiko 1.15.1根据文档，从 1.10.0 开始为 exec_command 创建了超时，但由于某种原因它对我不起作用。我的代码中是否有我遗漏的错误，或者它实际上是一个错误？

我有这个代码

class CustomSSH(object):

    def __init__(self, node):
        self.node = node
        self.ssh = paramiko.SSHClient()
        self.ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        try:
            self.privkey = paramiko.RSAKey.from_private_key_file('./secret.key')
        except:
            self.use_password = True

    def connect_ssh(self, timeout=60):
        try:
            if self.use_password:
                self.ssh.connect(self.node,
                                timeout=60,
                                username='xxx',
                                password='xxx',
                                look_for_keys=False)
            else:
                """Using SSH Key"""
                self.ssh.connect(self.node,
                                timeout=60,
                                username='xxx',
                                pkey=self.privkey,
                                look_for_keys=False)
            self.using_ssh = True
            return True

        except paramiko.AuthenticationException, e:
            if self.use_password:
                raise paramiko.SSHException
            print "Private key {}".format(e)
            print "Trying using username/password instead"
            self.use_password = True
            self.connect_ssh()

        except paramiko.SSHException, e:
            print "some other error ", e
            self.close()
            raise
        except Exception:
            print "exception"
            raise

    def close(self):
        print "Closing connection"
        try:
            self.ssh.close()
        except:
            print "Error closing connection"

    def send_cmd(self, command, regexmatch='', timeout=60):
        """Issue Commands using SSH
           returns a Tuple of (True/False, results)"""
        try:
            stdin, stdout, stderr = self.ssh.exec_command(command, timeout)
            xresults = stdout.readlines()
            results = ''.join(xresults)
            re_status = re.compile(regexmatch, re.IGNORECASE)
            if re_status.search(results):
                return (True, xresults)
            else:
                return (False, xresults)
        except Exception as e:
            raise KeyError, e

我正在执行如下:

ssh = CustomSSH(node)
ssh.connect_ssh()
ssh.send_cmd(abort_cmd)

这里有什么问题吗？

Answer 1

这当然是一个简单的错字。

调用 exec_command 时，我发送了超时值而不是 timeout=value。

self.ssh.exec_command(command, timeout)

应该是

self.ssh.exec_command(command, timeout=60)