您可以从不依赖于语言环境设置的stdlib中使用wsgiref.handlers.format_date_time
from wsgiref.handlers import format_date_timefrom datetime import datetimefrom time import mktimenow = datetime.now()stamp = mktime(now.timetuple())print format_date_time(stamp) #--> Wed, 22 Oct 2008 10:52:40 GMT
您可以使用不依赖于语言环境设置的stdlib中的email.utils.formatdate
from email.utils import formatdatefrom datetime import datetimefrom time import mktimenow = datetime.now()stamp = mktime(now.timetuple())print formatdate( timeval = stamp, localtime = False, usegmt = True) #--> Wed, 22 Oct 2008 10:55:46 GMT
如果您可以将语言环境设置为宽范围，则可以执行以下操作：
import locale, datetimelocale.setlocale(locale.LC_TIME, 'en_US')datetime.datetime.utcnow().strftime('%a, %d %b %Y %H:%M:%S GMT')如果您不想将语言环境设置为宽范围，则可以使用Babel
日期格式
from datetime import datetimefrom babel.dates import format_datetimenow = datetime.utcnow()format = 'EEE, dd LLL yyyy hh:mm:ss'print format_datetime(now, format, locale='en') + ' GMT'
与wsgiref.handlers.format_date_time相同的手动格式化方法是：
def httpdate(dt): """Return a string representation of a date according to RFC 1123 (HTTP/1.1). The supplied date must be in UTC. """ weekday = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"][dt.weekday()] month = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"][dt.month - 1] return "%s, %02d %s %04d %02d:%02d:%02d GMT" % (weekday, dt.day, month, dt.year, dt.hour, dt.minute, dt.second)
