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

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

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



This article is attributed to GeeksforGeeks.org

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