我正在尝试使用 lxml 处理一些数据。它在我的开发服务器上运行良好,但在生产中使用以下代码:
parser = etree.XMLParser(encoding='cp1251')
抛出:
File "parser.pxi", line 1288, in lxml.etree.XMLParser.__init__ (third_party/apphosting/python/lxml/src/lxml/lxml.etree.c:77726)
File "parser.pxi", line 738, in lxml.etree._BaseParser.__init__ (third_party/apphosting/python/lxml/src/lxml/lxml.etree.c:73404)
LookupError: unknown encoding: 'cp1251'
我正在使用 lxml 2.3。GAE似乎支持相同的版本。那么为什么会出现这个错误呢?
编辑:
我为 指定了不同的编码XMLParser
,例如 cp1252、ISO-8859-5、ISO-8859-2,它总是在 GAE 上抛出相同的错误,但在我的本地机器上工作。这些是流行的编码,GAE 上的 lxml 必须支持它们。我相信这是基于 GAE 构建的 lxml 有问题。
我创建了一个问题:http ://code.google.com/p/googleappengine/issues/detail?id=7315
编辑2:
完整追溯:
unknown encoding: 'cp1251'
Traceback (most recent call last):
File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3/webapp2.py", line 1511, in __call__
rv = self.handle_exception(request, response, e)
File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3/webapp2.py", line 1505, in __call__
rv = self.router.dispatch(request, response)
File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3/webapp2.py", line 1253, in default_dispatcher
return route.handler_adapter(request, response)
File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3/webapp2.py", line 1077, in __call__
return handler.dispatch()
File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3/webapp2.py", line 547, in dispatch
return self.handle_exception(e, self.app.debug)
File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3/webapp2.py", line 545, in dispatch
return method(*args, **kwargs)
File "/base/data/home/apps/s~my_cool_app_id/1.358126884781269352/main.py", line 29, in get
parser = etree.XMLParser(encoding='cp1251')
File "parser.pxi", line 1288, in lxml.etree.XMLParser.__init__ (third_party/apphosting/python/lxml/src/lxml/lxml.etree.c:77726)
File "parser.pxi", line 738, in lxml.etree._BaseParser.__init__ (third_party/apphosting/python/lxml/src/lxml/lxml.etree.c:73404)
LookupError: unknown encoding: 'cp1251'