python - Best practice for using datetime in Pymongo query path? -

how can use datetime object in case need complex path? example want increment counter located in jumps/datetime.date()/country code:

database['data'].update_one(                 {'some_data' : 'asdasd'},                 {'$inc' : {'jumps.{}.{}'.format(datetime.now().date(), "us") : 1}},             ) 

this code work, (as expected) there string instead of datetime object:

"jumps" : {     "2017-04-14" : {         "us" : 4     } } 

it's impossible store date object key in mongodb document. also, shouldn't use value key, because can't use keys in queries or indexes. better if change structure of document , simplify it.

something that:

"jumps" : {[     {'date': isodate('2017-04-14'), "us" : 4},     {'date': isodate('2017-04-14'), "ru" : 9} ]} 

or can create new collection jumps contain documents:

{'date': isodate('2017-04-14'), "us" : 4} {'date': isodate('2017-04-14'), "ru" : 9} 

or structure

look @ article https://derickrethans.nl/mongodb-arbitrary-key-names.html