你可以这样做,首先声明你的模型
// module name
module napalm-star-wars {
// boilerplate
yang-version "1";
namespace "https://napalm-yang.readthedocs.io/napalm-star-wars";
prefix "napalm-star-wars";
// identity to unequivocally identify the faction an individual belongs to
identity AFFILIATION {
description "To which group someone belongs to";
}
identity EMPIRE {
base AFFILIATION;
description "Affiliated to the empire";
}
identity REBEL_ALLIANCE {
base AFFILIATION;
description "Affiliated to the rebel alliance";
}
// new type to enforce correctness of the data
typedef age {
type uint16 {
range 1..2000;
}
}
// this grouping will all the personal data we will assign to individuals
grouping personal-data {
leaf name {
type string;
}
leaf age {
type age;
}
leaf affiliation {
type identityref {
base napalm-star-wars:AFFILIATION;
}
}
}
// this is the root object defined by the model
container universe {
list individual {
// identify each individual by using the name as key
key "name";
// each individual will have the elements defined in the grouping
uses personal-data;
}
}
}
对模型进行树状表示
$ pyang -f tree napalm-star-wars.yang
module: napalm-star-wars
+--rw roster
+--rw individual* [name]
+--rw name string
+--rw age? age
+--rw affiliation? identityref
稍后在您的 python 代码中使用它:
>>> import napalm_star_wars
>>>
>>> sw = napalm_star_wars.napalm_star_wars()
>>>
>>> obi = sw.universe.individual.add("Obi-Wan Kenobi")
>>> obi.affiliation = "REBEL_ALLIANCE"
>>> obi.age = 57
>>>
>>> luke = sw.universe.individual.add("Luke Skywalker")
>>> luke.affiliation = "REBEL_ALLIANCE"
>>> luke.age = 19
在这里,您可以根据自己的选择获得获取 json 或 xml 的答案。
import json
>>> print(json.dumps(sw.get(), indent=4))