_gexf.py 文件源码

def getAttributesDeclarationXML(self) :
        """ generate attributes declaration XML """
        # return lxml etree element
        allAttributesXML=[]
        if len(self)>0 :
            # iter on node and then edge atts
            for attClass,atts in self.iteritems() :
                # group by mode
                key_mode=lambda att : att["mode"]
                atts_sorted_by_mode=sorted(atts.values(),key=key_mode,reverse=True)
                for mode,atts in itertools.groupby(atts_sorted_by_mode,key_mode)  :
                    # generate on attributes by mode
                    attributesXML = etree.Element("attributes")
                    attributesXML.set("class",attClass)
                    attributesXML.set("mode",mode)
                    # generate attribute by id order
                    for att in sorted(atts,key=lambda att: att["id"]) :
                        attributeXML=etree.SubElement(attributesXML, "attribute")
                        attributeXML.set("id",str(att["id"]))
                        attributeXML.set("title",att["title"])
                        attributeXML.set("type",att["type"])
                        if att["defaultValue"] :
                            etree.SubElement(attributeXML, "default").text=att["defaultValue"]
                    allAttributesXML.append(attributesXML)    
        return allAttributesXML