提问人：Shehan Jayalath 提问时间：10/8/2021 更新时间：4/5/2022 访问量：2952
文档为空 （ lxml.etree.ParserError： 文档为空 ）
Document is empty ( lxml.etree.ParserError: Document is empty )
问：
此错误的原因可能是什么？
我认为这是由于相关网页的页面加载不完整。这是对的吗？
Traceback (most recent call last):
File "/home/ubuntu/.local/share/virtualenvs/Project-RDkr7CyY/lib/python3.7/site-packages/pyquery/pyquery.py", line 57, in fromstring
result = getattr(etree, meth)(context)
File "src/lxml/etree.pyx", line 3213, in lxml.etree.fromstring
File "src/lxml/parser.pxi", line 1877, in lxml.etree._parseMemoryDocument
File "src/lxml/parser.pxi", line 1765, in lxml.etree._parseDoc
File "src/lxml/parser.pxi", line 1127, in lxml.etree._BaseParser._parseDoc
File "src/lxml/parser.pxi", line 601, in lxml.etree._ParserContext._handleParseResultDoc
File "src/lxml/parser.pxi", line 711, in lxml.etree._handleParseResult
File "src/lxml/parser.pxi", line 640, in lxml.etree._raiseParseError
File "<string>", line 1
lxml.etree.XMLSyntaxError: Document is empty, line 1, column 1
Traceback (most recent call last):
File "/home/ubuntu/services/Project/src/parser.py", line 9, in __init__
self._parser = HTML(html=text)
File "/home/ubuntu/.local/share/virtualenvs/projects-RDkr7CyY/lib/python3.7/site-packages/requests_html.py", line 421, in __init__
element=PyQuery(html)('html') or PyQuery(f'<html>{html}</html>')('html'),
File "/home/ubuntu/.local/share/virtualenvs/projects-RDkr7CyY/lib/python3.7/site-packages/pyquery/pyquery.py", line 217, in __init__
elements = fromstring(context, self.parser)
File "/home/ubuntu/.local/share/virtualenvs/projects-RDkr7CyY/lib/python3.7/site-packages/pyquery/pyquery.py", line 61, in fromstring
result = getattr(lxml.html, meth)(context)
File "/home/ubuntu/.local/share/virtualenvs/projects-RDkr7CyY/lib/python3.7/site-packages/lxml/html/__init__.py", line 876, in fromstring
doc = document_fromstring(html, parser=parser, base_url=base_url, **kw)
File "/home/ubuntu/.local/share/virtualenvs/projects-RDkr7CyY/lib/python3.7/site-packages/lxml/html/__init__.py", line 765, in document_fromstring
"Document is empty")
lxml.etree.ParserError: Document is empty
答：
0赞
fmalina
4/5/2022
#1
对我来说，这是由于前导或尾随空格造成的，但我没有设法重现。 修复了“文档为空”错误：str.strip()
html = html.strip()
dom = fromstring(html)
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