查询超过一个单词时，Google App Engine搜索将失败，并发生异常

Question

我在使用Google App Engine中的“搜索” API时遇到问题。 本质上，问题如下：

我正在根据我知道具有要查找的数据的搜索索引执行搜索。 搜索查询由用户输入，其中有多个单词，例如“黑皮诺”。 如果用户按原样输入带有两个空格的单词，则搜索服务会引发如下异常：

ERROR    2018-03-05 02:17:11,675 api_server.py:407] Exception while handling search.Search()
Traceback (most recent call last):
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/api_server.py", line 375, in _handle_POST
api_response = _execute_request(request).Encode()
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/api_server.py", line 234, in _execute_request
make_request()
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/api_server.py", line 226, in make_request
request_id)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/apiproxy_stub.py", line 151, in MakeSyncCall
method(request, response)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/search/simple_search_stub.py", line 1044, in _Dynamic_Search
results = index.Search(params)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/search/simple_search_stub.py", line 646, in Search
docs = self._Evaluate(query_tree, score=score)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/search/simple_search_stub.py", line 544, in _Evaluate
for doc in matched_documents]
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/search/stub/document_matcher.py", line 537, in <genexpr>
return (doc for doc in documents if self.Matches(doc))
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/search/stub/document_matcher.py", line 534, in Matches
return self._CheckMatch(self._query, document)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/search/stub/document_matcher.py", line 491, in _CheckMatch
return result or self._MatchGlobalPhrase(node, document)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/search/stub/document_matcher.py", line 470, in _MatchGlobalPhrase
phrase_text):
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/search/stub/document_matcher.py", line 111, in _MatchRawPhraseWithRawAtom
field_text, input_field_type=document_pb.FieldValue.ATOM)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/search/stub/simple_tokenizer.py", line 106, in TokenizeText
value=text, token_position=token_position)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/search/stub/simple_tokenizer.py", line 147, in _TokenizeForType
token = _SINGLE_QUOTE_RE.search(token).group(1)
AttributeError: 'NoneType' object has no attribute 'group'

如果最终用户将查询更改为用双引号引起来，则该查询似乎正常运行。 我正在开发服务器环境中运行它，因此这可能是由于开发服务器未完全实现GAE的全文本搜索功能而导致的，但是我有点担心仅将其部署到生产环境中未经测试的环境，以查看它是否有效，因为我们的应用程序是实时的。

因此，我正在寻找任何线索-以前是否有人看过，从错误中可以肯定地看到这是一个非常明显的编码问题-也许我在开发服务器中运行的搜索API版本错误？ 升级我的App Engine API时，我总是下载完整的升级，所有内容都应使用最新版本的代码删除和覆盖。

在此先感谢您的帮助！