Fix Python – Python UTC datetime object’s ISO format doesn’t include Z (Zulu or Zero offset)

Why python 2.7 doesn’t include Z character (Zulu or zero offset) at the end of UTC datetime object’s isoformat string unlike JavaScript?
>>> datetime.datetime.utcnow().isoformat()
‘2013-10-29T09:14:03.895210’

Whereas in javascript
>>> console.log(new Date().toISOString());
2013-10-29T09:38:41.341Z

….