Calendar Functions in Python | Set 1( calendar(), month(), isleap()...)

Calendar Functions in Python | Set 1( calendar(), month(), isleap()…)

Difficulty Level : Easy
Last Updated : 10 Feb, 2020

Python defines an inbuilt module “calendar” which handles operations related to calendar.

Operations on calendar :

1. calendar(year, w, l, c) :- This function displays the year, width of characters, no. of lines per week and column separations.

2. firstweekday() :- This function returns the first week day number. By default 0 (Monday).

# Python code to demonstrate the working of
# calendar() and firstweeksday()
  
# importing calendar module for calendar operations
import calendar
  
# using calender to print calendar of year
# prints calendar of 2012
print ("The calender of year 2012 is : ")
print (calendar.calendar(2012,2,1,6))
  
#using firstweekday() to print starting day number
print ("The starting day number in calendar is : ",end="")
print (calendar.firstweekday())

Output:

The calendar of year 2012 is : 
                                  2012

      January                   February                   March
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
                   1             1  2  3  4  5                1  2  3  4
 2  3  4  5  6  7  8       6  7  8  9 10 11 12       5  6  7  8  9 10 11
 9 10 11 12 13 14 15      13 14 15 16 17 18 19      12 13 14 15 16 17 18
16 17 18 19 20 21 22      20 21 22 23 24 25 26      19 20 21 22 23 24 25
23 24 25 26 27 28 29      27 28 29                  26 27 28 29 30 31
30 31

       April                      May                       June
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
                   1          1  2  3  4  5  6                   1  2  3
 2  3  4  5  6  7  8       7  8  9 10 11 12 13       4  5  6  7  8  9 10
 9 10 11 12 13 14 15      14 15 16 17 18 19 20      11 12 13 14 15 16 17
16 17 18 19 20 21 22      21 22 23 24 25 26 27      18 19 20 21 22 23 24
23 24 25 26 27 28 29      28 29 30 31               25 26 27 28 29 30
30

        July                     August                  September
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
                   1             1  2  3  4  5                      1  2
 2  3  4  5  6  7  8       6  7  8  9 10 11 12       3  4  5  6  7  8  9
 9 10 11 12 13 14 15      13 14 15 16 17 18 19      10 11 12 13 14 15 16
16 17 18 19 20 21 22      20 21 22 23 24 25 26      17 18 19 20 21 22 23
23 24 25 26 27 28 29      27 28 29 30 31            24 25 26 27 28 29 30
30 31

      October                   November                  December
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
 1  2  3  4  5  6  7                1  2  3  4                      1  2
 8  9 10 11 12 13 14       5  6  7  8  9 10 11       3  4  5  6  7  8  9
15 16 17 18 19 20 21      12 13 14 15 16 17 18      10 11 12 13 14 15 16
22 23 24 25 26 27 28      19 20 21 22 23 24 25      17 18 19 20 21 22 23
29 30 31                  26 27 28 29 30            24 25 26 27 28 29 30
                                                    31

The starting day number in calendar is : 0

3. isleap (year) :- This function checks if year mentioned in argument is leap or not.

4. leapdays (year1, year2) :- This function returns the number of leap days between the specified years in arguments.

# Python code to demonstrate the working of
# isleap() and leapdays()
  
# importing calendar module for calendar operations
import calendar
  
# using isleap() to check if year is leap or not
if (calendar.isleap(2008)):
       print ("The year is leap")
else : print ("The year is not leap")
  
#using leapdays() to print leap days between years 
print ("The leap days between 1950 and 2000 are : ",end="")
print (calendar.leapdays(1950, 2000))

Output:

The year is leap
The leap days between 1950 and 2000 are : 12

5. month (year, month, w, l) :- This function prints the month of a specific year mentioned in arguments. It takes 4 arguments, year, month, width of characters and no. of lines taken by a week.

# Python code to demonstrate the working of
# month()
  
# importing calendar module for calendar operations
import calendar
  
# using month() to display month of specific year
print ("The month 5th of 2016 is :")
print (calendar.month(2016,5,2,1))

Output:

The month 5th of 2016 is :
      May 2016
Mo Tu We Th Fr Sa Su
                   1
 2  3  4  5  6  7  8
 9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31

This article is contributed by Manjeet Singh. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.

Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course.

My Personal Notes

Related Articles