python 读写yaml

甜思思

http://mikkel.elmholdt.dk/?p=4
1. install pyyaml:  (http://pyyaml.org/wiki/PyYAMLDocumentation)
1.1 wget http://pyyaml.org/download/pyyaml/PyYAML-3.01.tar.gz
1.2 tar zxvf PyYAML-3.01.tar.gz
1.3 cd PyYAML-3.01 && python setup.py install
# tree format
treeroot:
branch1:
name: Node 1
branch1-1:
name: Node 1-1
branch2:
name: Node 2
branch2-1:
name: Node 2-1



import yaml
f = open('tree.yaml')
dataMap = yaml.load(f)
f.close()
# dataMap:
{'treeroot': {'branch1': {'branch1-1': {'name': 'Node 1-1'},
'name': 'Node 1'},
'branch2': {'branch2-1': {'name': 'Node 2-1'},
'name': 'Node 2'}}}


f = open('newtree.yaml', "w")
yaml.dump(dataMap, f)
f.close()