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__init__.py
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__init__.py
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import json
import yaml
from collections import OrderedDict
# solutions taken from:
# http://stackoverflow.com/questions/5121931/in-python-how-can-you-load-yaml-mappings-as-ordereddicts
def load(stream, Loader=yaml.Loader, object_pairs_hook=OrderedDict):
class OrderedLoader(Loader):
pass
def construct_mapping(loader, node):
loader.flatten_mapping(node)
return object_pairs_hook(loader.construct_pairs(node))
OrderedLoader.add_constructor(
yaml.resolver.BaseResolver.DEFAULT_MAPPING_TAG,
construct_mapping)
return yaml.load(stream, OrderedLoader)
def dump(data, stream=None, Dumper=yaml.Dumper, **kwargs):
class OrderedDumper(Dumper):
pass
def _dict_representer(dumper, data):
return dumper.represent_mapping(
yaml.resolver.BaseResolver.DEFAULT_MAPPING_TAG,
data.items())
OrderedDumper.add_representer(OrderedDict, _dict_representer)
return yaml.dump(data, stream, OrderedDumper, **kwargs)
def yaml_to_json(yaml_data, load_kwargs={}, dump_kwargs={}):
dump_kwargs.setdefault('indent', 4)
data = load(yaml_data, **load_kwargs)
return json.dumps(data, **dump_kwargs)
def json_to_yaml(json_data, load_kwargs={}, dump_kwargs={}):
load_kwargs.setdefault('object_pairs_hook', OrderedDict)
data = json.loads(json_data, **load_kwargs)
dump_kwargs.setdefault('default_flow_style', False)
dump_kwargs.setdefault('indent', 4)
return dump(data, **dump_kwargs)