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Under utils/common.py, 

TIMESTAMP_FORMAT_MILLIS = '%Y-%m-%dT%H:%M:%S.%fZ'

The %f produces time with microseconds, for example: 2020-03-18T19:43:18.115783Z.


However, when interacting the AWS s3 and sns apis, I receive DateTimes like this:

2020-03-02T22:32:13.240Z
i.e. milliseconds. 

This seems like a simple change to the utils. TIMESTAMP_FORMAT_MILLIS is named as if it should be millis as well. This is seems like a simple change. Is there a reason it should be microseconds?
key, redirect_url = multipart_content.find_multipart_key_value(data, headers)
            if key and redirect_url:
                response.status_code = 303
                response.headers['Location'] = expand_redirect_url(redirect_url, key, bucket_name)
                LOGGER.debug('S3 POST {} to {}'.format(response.status_code, response.headers['Location']))
            key, status_code = multipart_content.find_multipart_key_value(
                data, headers, 'success_action_status')
            if response.status_code == 200 and status_code == '201' and key:
                response.status_code = 201
                response._content = self.get_201_reponse(key, bucket_name)
                response.headers['Content-Length'] = str(len(response._content))
                response.headers['Content-Type'] = 'application/xml; charset=utf-8'
                return response
        parsed = urlparse.urlparse(path)
        bucket_name_in_host = headers['host'].startswith(bucket_name)
        should_send_notifications = all([
            method in ('PUT', 'POST', 'DELETE'),
            '/' in path[1:] or bucket_name_in_host or key,
            
            
            bucket_name_in_host or key or (len(path[1:].split('/')) > 1 and len(path[1:].split('/')[1]) > 0),
            self.is_query_allowable(method, parsed.query)
        ])
        
        if should_send_notifications:
            
            if key:
                object_path = '/' + key
            elif bucket_name_in_host:
                object_path = parsed.path