1+ # Date and Time functionality
2+ """
3+ Farhan Javed - 11-19-2019
4+ Date and time basic functionality code. Also includes working with Calendars.
5+ Feel free to reach out : farhan.javed47@gmail.com
6+ """
7+ from datetime import date
8+ from datetime import datetime
9+ from datetime import timedelta
10+ import calendar
11+
12+
13+ def main ():
14+
15+ today = date .today ()
16+ print ("Today's date = " , today )
17+ print ("Today's date = " + str (today ))
18+ print ("Today's date = " + today .strftime ("%d/%m/%Y" ))
19+ print ("Today's date = " + today .strftime ("%A-%B-%Y" ))
20+ # the strftime(format) function is used to format the date and print it out.
21+ # more information here : https://docs.python.org/2/library/datetime.html#strftime-strptime-behavior
22+ # use a comma ( , ) instead of plus ( + ) to print the date object without having to use the str() function.
23+
24+ print ("Printing individual components : " , today .day , today .month , today .year )
25+ print ("Printing individual components : " + str (today .day ) + str (today .month ) + str (today .year ))
26+
27+ # also notice that the comma operator in the print function automatically put a space when printing out objects
28+ # which is not done by the plus operator since plus concatenates the two strings.
29+
30+ print ("Today's week day number is : " , today .weekday ())
31+ # Weekday function returns the day of the week as an integer starting from Monday = 0 uptil Sunday = 6.
32+ # This can be used as a list iterator as well in functions.
33+
34+ days = ["Mon" , "Tue" , "Wed" , "Thurs" , "Fri" , "Sat" , "Sun" ]
35+ print ("Today's day : " + days [today .weekday ()])
36+ datetime_now = datetime .now ()
37+ print ("Current date and time : " , datetime_now )
38+
39+ t = datetime .time (datetime_now )
40+ print ("Current Time : " , t )
41+ print (datetime_now .strftime ("%a, %d %B, %y" ))
42+
43+ # localized version of date and time
44+ print (datetime_now .strftime ("Locale date and time : %c" ))
45+ print (datetime_now .strftime ("Locale date: %x" ))
46+ print (datetime_now .strftime ("Local time : %X" ))
47+
48+ # formatted time
49+
50+ print (datetime_now .strftime ("Current time : %I:%M:%S %p" ))
51+ print (datetime_now .strftime ("Current time : %H:%M" ))
52+
53+ # mathematical operations on the date and time objects. We can use the timedelta class
54+ # we need to import the timedelta package from datetime
55+
56+ print (timedelta (days = 365 , hours = 5 , minutes = 1 ))
57+ print ("Current date and time : " , datetime_now )
58+ print ("One year later : " + str (datetime_now + timedelta (days = 365 )))
59+ print ("3 weeks and 2 days later : " + str (datetime_now + timedelta (weeks = 3 , days = 2 )))
60+
61+ t = datetime .now () - timedelta (weeks = 1 )
62+ print ("One week ago it was : " + t .strftime ("%A %B %d, %Y" ))
63+
64+ april_fools_day = date (today .year , 4 , 1 )
65+
66+ if april_fools_day < today :
67+ print ("April Fools day was %d days ago" % (today - april_fools_day ).days )
68+ april_fools_day = april_fools_day .replace (year = today .year + 1 )
69+ print ("Days remaining in next April fools day : " , (april_fools_day - today ).days )
70+
71+ # to work with calendars we need to import the calendar package
72+
73+ cal = calendar .TextCalendar (calendar .SUNDAY ) # tells the first day of the week
74+ formatted_cal = cal .formatmonth (2019 , 11 , 0 , 0 )
75+
76+ html_cal = calendar .HTMLCalendar (calendar .SUNDAY )
77+ html_code = html_cal .formatmonth (2019 , 11 )
78+
79+ # for i in cal.itermonthdays(2019, 11): # 0s represent that those days belong to the previous/next month
80+ # print(i)
81+
82+ # For locale based month and day names
83+ for month in calendar .month_name :
84+ print (month )
85+
86+ for day in calendar .day_name :
87+ print (day )
88+
89+ # for example if we want to have a team meeting on the first Friday of every month in 2020
90+ # we can use the following piece of code.
91+
92+ print ("Team meeting in 2020 will be on : " )
93+ for meeting in range (1 ,13 ): # 13 is non inclusive
94+ cal = calendar .monthcalendar (2020 , meeting )
95+ week_one = cal [0 ]
96+ week_two = cal [1 ]
97+
98+ if week_one [calendar .FRIDAY ] != 0 :
99+ meet_day = week_one [calendar .FRIDAY ]
100+ else :
101+ meet_day = week_two [calendar .FRIDAY ]
102+
103+ print ("%10s %2d" % (calendar .month_name [meeting ], meet_day ))
104+
105+
106+ main ()
0 commit comments