使用lxml和iterparse（）解析大（+-1Gb）XML文件

使用lxml和iterparse（）解析大（+-1Gb）XML文件

for event, element in etree.iterparse(path_to_file, tag="BlogPost"):    for child in element:        print child.tag, child.text    element.clear()

最后的清除将阻止您使用过多的内存。

[更新：]要获得“…之间的所有信息，作为字符串”，我想您需要以下其中一项：

for event, element in etree.iterparse(path_to_file, tag="BlogPost"):    print etree.tostring(element)    element.clear()

要么

for event, element in etree.iterparse(path_to_file, tag="BlogPost"):    print ''.join([etree.tostring(child) for child in element])    element.clear()

甚至：

for event, element in etree.iterparse(path_to_file, tag="BlogPost"):    print ''.join([child.text for child in element])    element.clear()