constructor.py 文件源码

python
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项目:petronia 作者: groboclown 项目源码 文件源码
def construct_mapping(self, node, deep=False):
        if not isinstance(node, MappingNode):
            raise ConstructorError(None, None,
                    "expected a mapping node, but found %s" % node.id,
                    node.start_mark)
        mapping = {}
        for key_node, value_node in node.value:
            key = self.construct_object(key_node, deep=deep)
            if not isinstance(key, collections.Hashable):
                raise ConstructorError("while constructing a mapping", node.start_mark,
                        "found unhashable key", key_node.start_mark)
            value = self.construct_object(value_node, deep=deep)
            mapping[key] = value
        return mapping
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