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JSON encode ISO UTC datetime

Author:
japerk
Posted:
April 13, 2009
Language:
Python
Version:
1.0
Score:
0 (after 0 ratings)

If you want to do your own JSON serialization of datetime objects instead of using DjangoJSONEncoder, use simplejson.dumps(o, default=encode_datetime). The encode_datetime method will convert the datetime object to UTC and output an ISO format string just like the isoutc template filter.

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import datetime
from dateutil import tz

def encode_datetime(obj):
	if isinstance(obj, datetime.datetime):
		return obj.astimezone(tz.tzutc()).strftime('%Y-%m-%dT%H:%M:%SZ')
	raise TypeError(repr(o) + " is not JSON serializable")

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