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python - lxml etree.iterparse 错误 "TypeError: reading file objects must return plain strings"

转载 作者:太空狗 更新时间:2023-10-29 18:18:49 30 4
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我想使用 lxml 解析 HTML 文档。我正在使用 python 3.2.3 和 lxml 2.3.4 ( http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml )

我正在使用 etree.iterparse 来解析文档,但它返回以下运行时错误:

Traceback (most recent call last):
File "D:\Eclipse Projects\Python workspace\Crawler\crawler.py", line 12, in <module>
for event, elements in etree.iterparse(some_file_like):
File "iterparse.pxi", line 491, in lxml.etree.iterparse.__next__ (src/lxml\lxml.etree.c:98565)
File "iterparse.pxi", line 512, in lxml.etree.iterparse._read_more_events (src/lxml\lxml.etree.c:98768)
TypeError: reading file objects must return plain strings

问题是:如何解决这个运行时错误?

非常感谢。

代码如下:

from io import StringIO
from lxml import etree

some_file_like = StringIO("<root><a>data</a></root>")

for event, elements in etree.iterparse(some_file_like): #<-- Run-time error happens here
print("%s, %4s, %s" % (event, elements.tag, elements.text))

最佳答案

您的 StringIO 缓冲区具有 unicode 字符串。 iterparse 处理类似返回字节的对象的文件。以下缓冲区应与 iterparse 一起使用:

from io import BytesIO
some_file_like = BytesIO("<root><a>data</a></root>".encode('utf-8'))

关于python - lxml etree.iterparse 错误 "TypeError: reading file objects must return plain strings",我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10242237/

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