pymongo: name 'ISODate' is not defined

Question

I have problem when i try to select data in mongodb with pymongo, this is my code :

import pymongo
from pymongo import MongoClient
import sys
from datetime i         


        

Answer 1

ISODate is a JavaScript Date object. To query range of date using PyMongo, you need to use a datetime.datetime instance which mongod will convert to the appropriate BSON type. You don't need any third party library.

Also you shouldn't be using the Aggregation Framework to do this because the _id field is unique within the collection which makes this a perfect job for the distinct() method.

import datetime


start = datetime.datetime(2016, 11, 11)
end = datetime(2016, 11, 11, 23, 59, 59)

db.session.distinct('_id', {'timestamp': {'$gte': start, '$lte': end}})

If you really need to use the aggregate() method, your $match stage must look like this:

{'$match': {'timestamp': {'$gte': start, '$lte': end}}}