如何在Python中将MySQL时间戳转换为纪元时间?有简单的方法吗?
为什么不让MySQL来做繁重的工作呢?
select unix_timestamp(fieldname) from tablename;
将MySQL时间转换为Epoch:
>>> import time
>>> import calendar
>>> mysql_time = "2010-01-02 03:04:05"
>>> mysql_time_struct = time.strptime(mysql_time, '%Y-%m-%d %H:%M:%S')
>>> print mysql_time_struct
(2010, 1, 2, 3, 4, 5, 5, 2, -1)
>>> mysql_time_epoch = calendar.timegm(mysql_time_struct)
>>> print mysql_time_epoch
1262401445
将时间戳转换为MySQL可用的格式:
>>> import time
>>> time_epoch = time.time()
>>> print time_epoch
1268121070.7
>>> time_struct = time.gmtime(time_epoch)
>>> print time_struct
(2010, 3, 9, 7, 51, 10, 1, 68, 0)
>>> time_formatted = time.strftime('%Y-%m-%d %H:%M:%S', time_struct)
>>> print time_formatted
2010-03-09 07:51:10
如果出于某种原因您不想让MySQL来处理,那么您可以很容易地在Python中完成此操作。当您从MySQLdb获得一个datetime列时,您会得到一个Python datetime.datetime对象。要转换其中的一个对象,您可以使用time.mktime。例如:
import time
# Connecting to database skipped (also closing connection later)
c.execute("SELECT my_datetime_field FROM my_table")
d = c.fetchone()[0]
print time.mktime(d.timetuple())
calendar.timegm(
time.gmtime(
time.mktime(
time.strptime(t,
"%Y-%m-%d %H:%M:%S"))))
这个问题中有更多信息:如何在Python中将本地时间转换为UTC?