About datetime module and JSON

import datetime

import simplejson as json

>> Encoder

dthandler = lambda obj: obj.isoformat() if isinstance(obj, datetime.datetime) else None

json.dumps(datetime.datetime.now(), default=dthandler)

>> Decoder

try:

v = datetime.datetime.strptime(v, '%Y-%m-%dT%H:%M:%S.%f)

except ValueError:

try:

v = datetime.datetime.strptime(v, '%Y-%m-%d').date()

except ValueError:

..........