python操作mongodb之七时间和时区

#时间和时区
import datetime
db.test.insert_one({"datetime-datetime-utcnow":datetime.datetime.utcnow()})
db.objects.insert_one({"datetime-datetime-now": datetime.datetime.now()})
#{ "_id" : ObjectId("576ccfad6a72e6042524f646"), "datetime-datetime-now" : ISODate("2016-06-24T14:14:05.575Z") }
#{ "_id" : ObjectId("576ccfcd6a72e6042524f647"), "datetime-datetime-utcnow" : ISODate("2016-06-24T06:14:37.392Z") }
#遍历获取
[doc['last_modified'] for doc in db.objects.find()]
#[datetime.datetime(2016, 6, 24, 14, 12, 15, 226000)]

#存入时间时带入时区
import pytz
pacific = pytz.timezone('US/Pacific')
aware_datetime = pacific.localize(datetime.datetime(2002, 10, 27, 6, 0, 0))
result = db.times.insert_one({"date": aware_datetime})
db.times.find_one()['date']

#读取时间
from bson.codec_options import CodecOptions
db.times.find_one()['date']
aware_times = db.times.with_options(codec_options=CodecOptions(tz_aware=True,tzinfo=pytz.timezone('US/Pacific')))
result = aware_times.find_one()