Question

我正在编写一个代码来使用Pexpect自动化测试所以基本上Telnet进入一个系统并发送命令。我为它生了一个孩子。我把孩子送去运作。它是通过引用传递还是通过值传递？

def test(child,clicommand,min,max,message):
    child.sendline("xyz")
    """Basically I am sending only sendline But I need 2 more expects. 
    Because of two execute called before this method.
    Both the expects are not blocking and the execute"""
    child.expect("() >")
    child.expect("() >")
    child.expect("() >")
    return


def execute(child,clicommand):
    print "Executing CLI command: "+clicommand
    child.sendline(clicommand)
    child.expect("() >")
    return


child = pexpect.spawn("telnet xx.xx.xx.xx xxxx")
child.sendline("")
child.expect("() >")
execute(child,"abc")
execute(child,"abc")
test(child,"xyz",1,2,"Error")

预期是缓冲还是排队？我怎样才能使它异步？我甚至试过尝试除了，但没有抛出异常

Answer 1

如上所述here，您无法使用相同的进程执行异步输入/输出，因此这样的锁定算法可能对您有用：

from threading import Lock  
lock=Lock()  

def send_command(str, int):           #int is the repetition number
    with lock:
        child.sendline(str)
        for x in range(int):
            child.expect("() >")

然后这样称呼：

def test():
    send_command("xyz",3)

希望它有所帮助。

在期待中有多重期待

1 个答案: