Real world ifs and elses

if.py

def extract_timestamp(self):
    record = self.get_parsed_record()
    timestamp = record.get('timestamp')
    if timestamp is None:
        return None
    if isinstance(timestamp, datetime):
        return timestamp
    return dateutil.parser.parse(record['timestamp'])



def get_parsed_record(self):
    record = self.record
    event_name = self.event_name
    if event_name in (SasEvents.KNOWLEDGE_COMPONENT_MODEL,
                      SasEvents.KCM_UPDATE):
        parsed_record = record
    elif event_name == CeEvents.QUESTION_PART_ATTEMPT:
        require_kcm = 'knowledge_component_model' in record
        parsed_record = qpa.parse_question_part_attempt(
            record, require_kcm=require_kcm)
    elif event_name == SasEvents.TUNING_STATUS_CHANGED:
        parsed_record = record
    else:
        parsed_record = record

    return parsed_record