The module datetime allows you to call several functions that can do computation with dates and times. How many days since my birth? How many days till Xmas? What's the date 77 days from now? The code snippet should give you a flavor, enough to explore on your own.
# testing (or tasting) the module datetime and its method date # datetime supports calendar arithmetic # strftime() requires the year to be >=1900 # date() can handle years down to 0001 # Python24 tested vegaseat 3/27/05 import datetime import calendar today = datetime.date.today() oneday = datetime.timedelta(days=1) # loop back to most recent Friday (could be today) # takes care of end of month and even leap years friday = today while friday.weekday() != calendar.FRIDAY: friday -= oneday oneweek = datetime.timedelta(days=7) nextweek = today + oneweek nextyear = today.replace(year=today.year+1) print "Today (year-month-day) =", today print "Most recent Friday =", friday print "One week from today =", nextweek print "One year from today =", nextyear print "Current time =", datetime.datetime.now().time() #just the time print "Lunchtime =", datetime.time(12, 00) # 12:00:00 print '-'*50 # a typical birthday year, month, day # or change it to your own birthday... birthday = datetime.date(1955, 4, 1) # three different ways to present a date # 1955-04-01 print "Birthday format1:", birthday # 04/01/55 print "Birthday format2:", birthday.strftime("%m/%d/%y") # 01Apr1955 print "Birthday format3:", birthday.strftime("%d%b%Y") age = today - birthday print "You are", age.days, "days old today!" # extract the year from todays date thisyear = int(today.strftime("%Y")[0:4]) # party message (include date and time) ... rightnow = datetime.datetime.today() bparty = datetime.datetime(thisyear, 4, 1, 14, 30) # check if you can still make it to the party ... if bparty > rightnow: print "Birthday party", bparty else: print "Missed this year's birthday party!" print '-'*50 # calculate days till xmas of this year xmas = datetime.date(thisyear, 12, 25) tillXmas = xmas - today print "There are %d days till xmas!" % tillXmas.days print '-'*50 # add days to a given date delta = datetime.timedelta(days=77) addDays = today + delta print "Today's date is :", today.strftime("%d%b%Y") print "77 days from today it will be :", addDays.strftime("%d%b%Y") print '-'*50 Weekday = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'] print "Today is", Weekday[datetime.date.weekday(today)] print print "If you were born on %s you were born on a %s" % (birthday.strftime("%d%b%Y"), Weekday[datetime.date.weekday(birthday)])
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