[Python] How to get ISO8601 string for datetime with milliseconds instead of microseconds in...

Given the following datetime:

d = datetime.datetime(2018, 10, 9, 8, 19, 16, 999578, tzinfo=dateutil.tz.tzoffset(None, 7200))


d.isoformat() results in the string:

'2018-10-09T08:19:16.999578+02:00'


How can I get a string with milliseconds instead of microseconds:

'2018-10-09T08:19:16.999+02:00'


strftime() will not work here: %z returns 0200 istead of 02:00 and has only %f to get microseconds, there is no placeholder for milliseconds.

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