python - 遍历 PyMongo 游标作为键值对

Question

是否可以像 dict 一样将 pymongo Cursor 作为键值对进行迭代？我正在使用 python 2.6 和 pymongo 1.9。

我试过了:

import pymongo
mongo = pymongo.Connection('localhost')
mongo_db = mongo['my_database']
mongo_coll = mongo_db['my_collection']
cursor = mongo_coll.find()
records = dict([(record_id, record) for record_id, record in mongo_cursor])

但我得到了错误:

ValueError: too many values to unpack

Answer 1

试试:

records = dict((record['_id'], record) for record in cursor)