这是一个性感的有效结构，还是我错过了什么

Question

我有这个YAML文件。我有Required和Optional密钥，还有可选的块，比如"linux"、"http"等等

---
project:
    name: lolproj
    url: http://wiki.tld/lolproj
contact:
    name: FooBar
    email: [e-mail]
plugins:
    linux:
        settings:
            disk:
                critical: 90
                warning: 80
    http:
...

我以这种方式加载并验证它：

from voluptuous import *
def main():
    with open('mytiny.yaml', 'r') as f:
        mon = yaml.safe_load(f)
    project =  {
        Required('name'): All(str, Length(min=5), msg="Must be a string!"),
        Required('url'): All(str, Length(min=5))
    }
    contact = {
        Required('name'): All(str, Length(min=5)),
        Required('email'): All(str, Length(min=5)),
    }
    disk_settings = {
            'warning': int,
            'critical': int,
    }
    plugins = ['linux','http','mysql']
    schema = Schema({
        Required('project'): project,
        Required('contact'): contact,
        Optional('plugins'): plugins,
            Optional('settings'): {
                Optional('disk'): disk_settings,
            }
    })

但我得到了这个错误：

Traceback (most recent call last):
  File "./readmon.py", line 143, in <module>
    main()
  File "./readmon.py", line 43, in main
    schema(mon)
  File "/usr/local/lib/python2.7/site-packages/voluptuous.py", line 207, in __call__
    return self._compiled([], data)
  File "/usr/local/lib/python2.7/site-packages/voluptuous.py", line 386, in validate_dict
    return base_validate(path, iteritems(data), out)
  File "/usr/local/lib/python2.7/site-packages/voluptuous.py", line 287, in validate_mapping
    raise MultipleInvalid(errors)
voluptuous.MultipleInvalid: expected a list for dictionary value @ data['plugins']

所以，看起来我在做一些非常糟糕的事情。有什么线索吗？问题是，我想要一个类似的东西：

['plugins']['inux']['settings']['disk']，或['plugins']['http']['ssettings']['disk']是具有可选设置的'linux'或'http'变量字段。

Voluptuous文档对新手不友好：/

Answer 1

刚刚将YAML布局更改为

"
...

plugins:
    linux:
        disk:
            critical: 90
            warning: 80
        exec:
            exitcode: 0
    http:
        url: http://127.0.0.1
        port: 8080
        status: 200
...
"

并将其验证为

''' PLUGINS SETUP
'''
disk_settings = {
    Optional('critical'): int,
    Optional('warning'): int,
    Optional('volume'): str,
}
exec_settings = {
    Optional('exitcode'): int,
}
linux_settings = {
    Optional('disk'): disk_settings,
    Optional('exec'): exec_settings,
}
http_settings = {
    Optional('url'): str,
    Optional('port'): int,
    Optional('status'): int,
}
plugins = {
    Optional('linux'): linux_settings,
    Optional('http'): http_settings,
}

''' CORE SCHEMA
'''
schema = Schema({
    Required('project'): project,
    Required('contact'): contact,
    Optional('plugins'): plugins,
})

它正在工作：）