python获取当前时间戳Long类型
怎么用python完成获取时间，并且转换成long类型
timestamp=long(int(round(time.time() * 1000)))
怎么完成59分钟前，26秒前这些字段换成long类型
def parse_time(time_str, tz=8):
from datetime import datetime, timedelta
def shift_time(time_delta, time_base=None):
"""
通过time_base - time_delta计算时间戳
"""
if not time_base:
time_base = datetime.utcnow()
return long((time_base + time_delta - datetime.utcfromtimestamp(0)).total_seconds() * 1000)
m = re.search(ur'(\d+)\s*秒前', time_str)
if m:
return shift_time(timedelta(seconds=-int(m.group(1))))
m = re.search(ur'(\d+)\s*分钟前', time_str)
if m:
return shift_time(timedelta(minutes=-int(m.group(1))))
m = re.search(ur'(\d+)\s*小时前', time_str)
if m:
return shift_time(timedelta(hours=-int(m.group(1))))
m = re.search(ur'(\d+)\s*天前', time_str)
if m:
return shift_time(timedelta(days=int(m.group(1))))
m = re.search(ur'刚刚', time_str)
if m:
import time
return long(int(round(time.time() * 1000)))
def parse_from_fmt(time_fmt):
try:
return long((datetime.strptime(time_str, time_fmt) - timedelta(
seconds=tz * 3600) - datetime.utcfromtimestamp(0)).total_seconds() * 1000)
except (UnicodeEncodeError, ValueError):
return None
for fmt in ['%y/%m/%d %H:%M:%S', '%Y-%m-%d %H:%M:%S','%y/%m/%d %H:%M','%Y-%m-%d %H:%M']:
timestamp = parse_from_fmt(fmt)
if timestamp:
return timestamp
raise ValueError(u'Invalid time string: %s' % time_str)
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