擅长:python、mysql、java
<p>我今天也遇到了同样的问题,在我删除了“tag”参数之后,它就起作用了:</p>
<pre><code>context = etree.iterparse(xml)
for event, elem in context:
if elem.tag = "group":
targets[(elem.get("from"), elem.get("to"))] = elem.xpath("link/@target")
elem.clear()
while elem.getprevious() is not None:
del elem.getparent()[0]
del context
</code></pre>