Convert datetime to Unix timestamp.

datetime2stamp.py

def datetime2stamp(year, month, day, hour, minute, second):
    timestamp = 0
    for y in range(year - 1, 1969, -1):
        if is_leap_year(y):
            day += 366
        else:
            day += 365

    month_day = [0, 31, 59, 90, 120, 151,  181, 212, 243, 273, 304, 334]

    day += month_day[month - 1]
    if (is_leap_year(year) and month > 2):
        day += 1
    day -= 1  # today is not over yet
    timestamp += day * 86400
    timestamp += hour * 3600
    timestamp += minute * 60
    timestamp += second

    return timestamp


def is_leap_year(year):
    if year % 4 == 0:
        if year % 100 == 0:
            if year % 400 != 0:
                return False
        return True
    return False

>>> import time
>>> from datetime import datetime
>>> time.mktime(datetime.now().timetuple())
1341544940.0

这样不是可以么？？

@lxneng 对，的确可以，这个只是实现着玩，用来验证一个 C 实现的算法是否正确。需要注意的是 time.mktime 是 local time，如果要 GMT 的 unix timestamp 的话可以用 calendar.timegm。并且这里的 is_leap_year 和 calendar.isleap 是等价的。

恩， 呵呵