lxml库，处理xml很强大，官方文档：

例如：

我们要生成如下格式的报文：

就可以参考如下的样例代码实现：

# 导入库import lxml.etree as etree# 注册指定命名空间etree.register_namespace("ttt", "http://www.hellojesson/ttt") # 生成根节点root = etree.Element("{http://www.hellojesson/ttt}jesson", xsi="http://www.hahaha.com", guid="33344555677777777777", version="1.0")# 生成子节点：order = etree.SubElement(root, "{http://www.hellojesson/ttt}order")orderhead = etree.SubElement(order, "{http://www.hellojesson/ttt}orderhead")guid = etree.SubElement(orderhead, "{http://www.hellojesson/ttt}guid")# 节点赋值order.text = "text"orderhead.text = "111"guid.text = "hello nihao"# 输出 查看效果print(etree.tostring(root, pretty_print=True))