#!/usr/bin/env python

import datetime

## easy_install iso8601

from iso8601 import parse_date as from_iso8601

def to_iso8601(d):
    if d.utcoffset() == None or d.utcoffset() == datetime.timedelta(0):
        return d.replace(microsecond=0, tzinfo=None).isoformat() + 'Z'
    return d.replace(microsecond=0).isoformat()