python 读写yaml

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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()

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