我试图用MongoEngine用python重现下面的查询,但没有成功。查询基本上返回嵌入文档中匹配的第一个元素,而不是整个嵌入文档本身。/lib/python2.7/site-packages/mongoengine/queryset.py", line 1225, in only
return self.fields(**fields/lib
_ensure_indexes()\n\n File \"/usr/local/lib/python2.7/dist-packages/mongoengine/queryset.py\", line_query and not types_indexed:\n\n File \"/usr/local/lib/python2.7/dist-packages/<em
用@的提示编辑,我的MongoDB现在已经正确启动,但是现在我在查询时得到了下面的错误。有什么办法解决这个问题吗?/dist-packages/mongoengine/queryset/base.py", line 309, in first File "/usr/local/lib/python2.7/dist-packages/<
/lib/python3.4/site-packages/mongoengine/queryset/base.py", line 193, in __getitem__
return queryset/lib/python3.4/site-packages/mongoengine/queryset/base.py",
"C:\Python39\lib\site-packages\mongoengine\queryset\base.py", line 200, in __getitem__ File "C:\Python39\lib\site-packages\mongoengine\queryset\base.py", line 1645, in _cursor_cursor_args)