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O'Reilly Platform
book
可编程网络自动化
by
Jason Edelman
,
Scott S. Lowe
,
Matt Oswalt
January 2023
Intermediate to advanced
458 pages
14h 16m
Chinese
Posts & Telecom Press
Content preview from
可编程网络自动化
在网络场景中学习
Python
|
117
提醒一下,使用类的对象的方法和使用不同数据类型(比如字符串、列表
和字典)的方法一样。虽然创建类属于高级主题,但至少应该知道如何使
用类。
如果对
switch2
和
switch3
使用
show
方法,就可以得到预期的返回数据,因为每个对象
都是
Device
的不同实例。
下面这个简短的例子展示了创建两个
Device
对象并使用对象获得各个设备的
show
hostname
输出。示例中所使用的库默认会返回
XML
格式的数据,如果需要的话,也可
以轻松地更改为
JSON
格式。
>>> switch1 = Device(ip='nycsw01', username='cisco', password='cisco')
>>> switch2 = Device(ip='nycsw02', username='cisco', password='cisco')
>>>
>>> switches = [switch1, switch2]
>>>
for
switch
in
switches:
... response = switch.show('show hostname')[1]
...
print
(response)
...
#
略去输出
>>>
4.14
小结
本章为网络工程师粗略介绍了
Python
,涵盖了包括数据类型、条件语句、循环、函数和文
件在内的基础概念,甚至还包括如何创建
Python
模
块,以便在不同的
Python
程序
/
脚本
中重用相同的代码。最后,我们给出了一些提示、技巧以及一般信息,在今后的 ...
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Publisher Resources
ISBN: 9787115606181