How can I know if a date is prior to today?

[Giampaolo Rodola']

Hi,
I have a date expressed in seconds.
I'd want to pretty print it as "%H:%M" if the time refers to today and
"%b%d" (month, day) if it's of yesterday or before.

I managed to do that with the code below but I don't like it too much.
Is there a better way to do that?
Thanks in advance.


import time

today_day = time.strftime("%d", time.localtime(time.time()))
mytime = time.localtime(time.time() - (60*60*30))  # dummy time prior
to today
if time.strftime("%d", mytime) == today_day:
    print time.strftime("%H:%M", mytime)
else:
    print time.strftime("%b%d", mytime)


--- Giampaolo
http://code.google.com/p/pyftpdlib
http://code.google.com/p/psutil