Python 2.7的input()和raw_input()问题。用户输入的数据未正确读取。发生了什么事?

时间:2019-06-25 14:20:17

标签: python python-2.7 input raw-input

所以在我公司,由于产品的兼容性原因,他们正在使我使用python 2.7。我不会在这里讨论。

因此,我正在编写一个程序,该程序使用SSH(特别是交换机)连接到设备,并且可以使用SSH实际访问该设备,并且该设备在我的计算机上可以ping通。问题 ? raw_input似乎没有将其作为字符串。当我尝试input()时,它给了我一个无效的语法错误。

对于我编写的脚本,我通常使用arparse,并且用户通过终端输入IP地址,用户名和密码,但是我希望此脚本不使用argparse并使用input()或raw_input。除了这一个脚本外,我所有的SSH脚本都可以正常工作,只有一个脚本使用raw_input和input()而不是argparse

def runMain():

    scriptName = os.path.basename(__file__)

    print("The name of this script is: " + scriptName)

    print("**************************************\n")

    print("This script allows you to enable and disable ports on the SNET or SOOBM switches, have fun ! \n")

    print("**************************************\n")

    optionPrinter_switches_top()

    user_input = raw_input("Make your selection") # This does not work if I change to input(), it exits out of the program

    if user_input == 1:
        print("You selected the SNET switch, lets proceed !")

        deviceIP = input("Enter the IP address for this device")  # I tried changing these to raw_input, I get a syntax issue
        deviceUsername = input("Enter the username for this device")
        devicePassword = input("Enter the password for this device")

        confirm_ping = canPing(deviceIP) # This is a boolean function that works correctly in every script but this one.

        if confirm_ping:
            ssh_SNET = connectToSSH_SNET(deviceIP, deviceUsername, devicePassword)
        else:
           print("Sorry, that device is not even ping-able. Figure that issue out and retry the program...")
           sys.exit(-1)

        while True:
            SNET_options()

            user_choice_SNET = input("Please select an option")

            switch_result = SNET_switch_func(user_choice_SNET)

            if switch_result == "displayInterfaceBrief":
                time.sleep(5)
                displayInterfaceBrief_SNET(ssh_SNET)
            elif switch_result == "enablePort":
                time.sleep(5)
                enablePort_SNET(ssh_SNET)
            elif switch_result == "disablePort":
                disablePort_SNET(ssh_SNET)
            elif switch_result == "switchReboot":
                reboot_SNET_switch(ssh_SNET)
            else:
                print("Exiting program now....")
                sys.exit(-1)

以下是相关问题:

user_input = raw_input("Make your selection") # This does not work if I change to input(), it exits out of the program
 deviceIP = input("Enter the IP address for this device")  # I tried changing these to raw_input, I get a syntax issue
 deviceUsername = input("Enter the username for this device")
 devicePassword = input("Enter the password for this device")

confirm_ping = canPing(deviceIP) # This is a boolean function that works correctly in every script but this one.

结论? input()/ raw_input()存在问题。这是怎么回事,我该如何解决?我不能使用python 3.7,这确实令人沮丧。感谢您的帮助

1 个答案:

答案 0 :(得分:0)

默认情况下,尝试将if user_input == 1:更改为if int(user_input) == 1:,因为输入函数默认采用字符串格式的输入。

并且,如果您想使用input()而不是raw_input()来从python 2.x中的用户那里获取输入,那么您可以尝试以下代码:

if hasattr(__builtins__, 'raw_input'):
    input=raw_input

user_input = input("Enter a number: ")