yml与python格式之间的转换

参考

python 读取yaml

import yaml
playbook=’/tmp/test.yaml’
playbook = yaml.load(file(playbook).read())

yaml 与 pyton格式

• 键盘值对

yml：
animal：pets
foo：bar

{ name: Steve, foo: bar }

python：字典
{
‘name’: ‘Steve’,
‘foo’: ‘bar’
}

• 数组

yml:

• Cat
• Dog
• Goldfish

python:列表
[‘Cat’,’Dog’,’Goldfish’]

• 符合结构

yml：
languages:

    - Ruby
    - Perl
    - Python 
websites:
    YAML: yaml.org 
    Ruby: ruby-lang.org 
    Python: python.org 
    Perl: use.perl.org 

python：
{
‘languages’:[‘Ruby’,’Perl’,’Python’],
‘websites’:{ YAML: ‘yaml.org’, Ruby: ‘ruby-lang.org’, Python: ‘python.org ‘,Perl: ‘use.perl.org’ }
}

• 真实文件

• pattern: ‘*’
  tasks:
  • do:
    • configure template & module variables
    • setup a=2 b=3 c=4
  • do:
    • copy a file
    • copy /srv/a /srv/b
      notify:
    • restart apache
  • do:
    • template from local file template.j2 to remote location /srv/file.out
    • template /srv/template.j2 /srv/file.out
      notify:
    • restart apache
    • quack like a duck
      handlers:
    • do:
      • restart apache
      • command /sbin/service httpd restart
    • do:
      • quack like a duck
      • command /bin/true

python：

[{
‘handlers’: [
{‘do’: [‘restart apache’,’command /sbin/service httpd restart’]},
{‘do’: [‘quack like a duck’, ‘command /bin/true’]}
],
‘pattern’: ‘*’,
‘tasks’: [
{‘do’: [‘configure template & module variables’,’setup a=2 b=3 c=4’]},
{‘do’: [‘copy a file’, ‘copy /srv/a /srv/b’], ‘notify’: [‘restart apache’]},
{‘do’: [‘template from local file template.j2 to remote location /srv/file.out’,’template /srv/template.j2 /srv/file.out’],’notify’: [‘restart apache’, ‘quack like a duck’]}
]
}
]