无法导入netmiko模块

Question

导入netmiko模块时出现问题。我已经安装了python3-pip并尝试导入netmiko模块

root@Python,Go,Perl,PHP-1:~# python3
Python 3.5.2 (default, Oct  8 2019, 13:06:37) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import netmiko
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.5/dist-packages/netmiko/__init__.py", line 7, in <module>
    from netmiko.ssh_dispatcher import ConnectHandler
  File "/usr/local/lib/python3.5/dist-packages/netmiko/ssh_dispatcher.py", line 2, in <module>
    from netmiko.a10 import A10SSH
  File "/usr/local/lib/python3.5/dist-packages/netmiko/a10/__init__.py", line 1, in <module>
    from netmiko.a10.a10_ssh import A10SSH
  File "/usr/local/lib/python3.5/dist-packages/netmiko/a10/a10_ssh.py", line 3, in <module>
    from netmiko.cisco_base_connection import CiscoSSHConnection
  File "/usr/local/lib/python3.5/dist-packages/netmiko/cisco_base_connection.py", line 143
    msg = f"Login failed: {self.host}"
                                     ^
SyntaxError: invalid syntax

Answer 1

正如您所看到的，您正在接收的SyntaxError发生在以下代码行：

msg = f"Login failed: {self.host}"

这是因为您的Python版本是3.5，而f-strings是在带有PEP 498的Python3.6中引入的。将Python版本升级到3.6或更高版本可以解决您的问题。

Answer 2

Netmiko 3.x.x (未来需要Python 3.6或更高版本)。Netmiko 2.4.2是支持Python2.7 (或Python3.5)的最后一个版本。

如果您尝试将Netmiko 3.x.x与Python 3.5一起使用，上面提到的F字符串将会中断。