Python下解析YAML文件 Python下解析YAML文件

Python中解析YAML文件主要使用到两个方法，load()和dump()方法，使用方式类似于Python的pickle。熟悉在Python中解析YAML文件，对使用Python做saltstack自定义插件开发时会有很大的帮助

load 测试

[root@PolarSnow saltstack]# cat eg.yaml name: Tom Smith age: 37 spouse: name: Jane Smith age: 25 children: - name: Jimmy Smith age: 15 - name1: Jenny Smith age1: 12[root@PolarSnow saltstack]# cat py_yaml.py #!/usr/bin/env python #coding=utf-8 import yamlwith open('eg.yaml', 'r') as loadfile: print yaml.load(loadfile)[root@PolarSnow saltstack]# python py_yaml.py {'age': 37, 'spouse': {'age': 25, 'name': 'Jane Smith'}, 'name': 'Tom Smith', 'children': [{'age': 15, 'name': 'Jimmy Smith'}, {'age1': 12, 'name1': 'Jenny Smith'}]}

关键代码

#!/usr/bin/env python #coding=utf-8 import yaml with open('eg.yaml', 'r') as loadfile: print yaml.load(loadfile)

dump 测试

[root@PolarSnow saltstack]# cat eg.yaml name: Tom Smith age: 37 spouse: name: Jane Smith age: 25 children: - name: Jimmy Smith age: 15 - name1: Jenny Smith age1: 12[root@PolarSnow saltstack]# cat py_yaml.py #!/usr/bin/env python #coding=utf-8 import yaml with open('eg.yaml', 'r') as loadfile: y = yaml.load(loadfile) print y with open('eg1.yaml','w') as dumpfile: dumpfile.write(yaml.dump(y)) print yaml.dump(y)[root@PolarSnow saltstack]# python py_yaml.py {'age': 37, 'spouse': {'age': 25, 'name': 'Jane Smith'}, 'name': 'Tom Smith', 'children': [{'age': 15, 'name': 'Jimmy Smith'}, {'age1': 12, 'name1': 'Jenny Smith'}]} age: 37 children: - {age: 15, name: Jimmy Smith} - {age1: 12, name1: Jenny Smith} name: Tom Smith spouse: {age: 25, name: Jane Smith}[root@PolarSnow saltstack]# cat eg1.yaml age: 37 children: - {age: 15, name: Jimmy Smith} - {age1: 12, name1: Jenny Smith} name: Tom Smith spouse: {age: 25, name: Jane Smith}

【Python下解析YAML文件】关键代码

#!/usr/bin/env python #coding=utf-8 import yaml#打开一个yaml文件将其解析，再将解析后的结构再转成yaml写入到新的文件 with open('eg.yaml', 'r') as loadfile: y = yaml.load(loadfile) print ywith open('eg1.yaml','w') as dumpfile: dumpfile.write(yaml.dump(y)) print yaml.dump(y)