python获取当前时间秒级时间戳

import arrow
import datetime
startDate = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
sDate=arrow.get(startDate).timestamp**1000
endDate = (datetime.datetime.now() + datetime.timedelta(hours=24)).strftime("%Y-%m-%d %H:%M:%S")
eDate=arrow.get(endDate).timestamp*1000