def ISO8601ToEpoch(theString):

    from datetime import datetime
    import calendar

    return calendar.timegm(datetime.strptime(theString, "%Y-%m-%dT%H:%M:%S.%f").timetuple())

def EpochToISO8601(theEpoch):

    from datetime import datetime

    return datetime.fromtimestamp(theEpoch).isoformat()

#

print 'Original Time {0}'.format('2018-04-27T04:19:51.050937')

theTime=ISO8601ToEpoch('2018-04-27T04:19:51.050937')
print 'Time {0}'.format(theTime)

print 'Original Time {0}'.format(EpochToISO8601(theTime)