python中lxml模块生成xml文件

雨点打透心脏的1/2处 2022-07-12 05:30 364阅读 0赞

用python自带的xml.etree.ElementTree模块和xml.dom.minidom模块生成xml文件标签的属性时，属性顺序会按照字典顺序重排，要想按照自己设定顺序来，可以使用lxml模块，lxml模块不是python自带的，需要自己安装，安装方法见上一篇博客。

lxml模块用法的例子如下：

from lxml import etree
    
    if __name__ == '__main__':
        #root = etree.Element("root")
    
        root = etree.Element("root",nsmap={
       'xsi': 'http://b.c/d'})
    
        root.set("xsiinteresting", "totally")
        child1 = etree.SubElement(root, "child1" )
        child1.set("interesting", "totally")
        child1.text = "TEXT"
    
        child2 = etree.SubElement(root, "child2") 
        child2.set("name", "myattr1")
        child2.set("auto", "myattr2")
    
        child3 = etree.SubElement(child2, "child3")
        child3.text = "TEXT"
        child4 = etree.SubElement(child2, "child4")
        child4.text = "TEXT"
        child5 = etree.SubElement(child2, "child5")
    
        child6 = etree.SubElement(child5, "child6")
        child6.text = "TEXT"
        child7 = etree.SubElement(child5, "child7")
        child7.text = "TEXT"
        #root.append( etree.Element("child1") )
        #root.append( etree.Element("child1", interesting="totally"))
        #child2 = etree.SubElement(root, "child2") 
    
        #child3 = etree.SubElement(root, "child3")
        #root.insert(0, etree.Element("child0")) 
    
        print etree.tostring(root, pretty_print=True) 
    
        # write to file: 
        tree = etree.ElementTree(root)  
        tree.write('text.xml', pretty_print=True, xml_declaration=True, encoding='utf-8')