Python defines an inbuilt module calendar that handles operations related to the calendar.
The calendar module allows us to output calendars like the program and provides additional useful functions related to the calendar. Functions and classes defined in the calendar module use an idealized calendar, the current Gregorian calendar extended indefinitely in both directions. By default, these calendars have Monday as the first day of the week, and Sunday as the last (the European convention).
Example #1: Display the Calendar of a given month.
Python3
# Python program to display calendar of# given month of the year # import moduleimport calendar yy = 2017mm = 11 # display the calendarprint(calendar.month(yy, mm)) |
Output:
Example #2: Display the calendar of the given year.
Python3
# Python code to demonstrate the working of# calendar() function to print calendar # importing calendar module# for calendar operationsimport calendar # using calendar to print calendar of year# prints calendar of 2018print ("The calendar of year 2018 is : ")print (calendar.calendar(2018)) |
Output:
class calendar.calendar :
The calendar class creates a calendar object. A calendar object provides several methods that can be used for preparing the calendar data for formatting. This class doesn’t do any formatting itself. This is the job of subclasses. The calendar class allows the calculations for various tasks based on date, month, and year and provides the following methods:
| Function | Description |
|---|---|
| iterweekdays() | Returns an iterator for the weekday numbers that will be used for one week |
| itermonthdates() | Returns an iterator for the month (1–12) in the year |
| itermonthdays() | Returns an iterator of a specified month and a year |
| itermonthdays2() | This method is used to get an iterator for the month in the year similar to itermonthdates(). Days returned will be tuples consisting of a day of the month number and a week day number. |
| itermonthdays3() | Returns an iterator for the month in the year similar to itermonthdates(), but not restricted by the datetime.date range. Days returned will be tuples consisting of a year, a month and a day of the month numbers. |
| itermonthdays4() | Returns an iterator for the month in the year similar to itermonthdates(), but not restricted by the datetime.date range. Days returned will be tuples consisting of a year, a month, a day of the month, and a day of the week numbers. |
| monthdatescalendar() | Used to get a list of the weeks in the month of the year as full weeks |
| monthdays2calendar() | Used to get a list of the weeks in the month of the year as full weeks |
| monthdayscalendar | Used to get a list of the weeks in the month of the year as full weeks |
| yeardatescalendar() | Used to get a list of the weeks in the month of the year as full weeks |
| yeardays2calendar() | Used to get the data for specified year. Entries in the week lists are tuples of day numbers and weekday numbers |
| yeardayscalendar() | Used to get the data for specified year. Entries in the week lists are day numbers |
class calendar.TextCalendar :
TextCalendar class can be used to generate plain text calendars. TextCalendar class in Python allows you to edit the calendar and use it as per your requirement.
| Function | Description |
|---|---|
| formatmonth() | This method is used to get the month’s calendar in a multi-line string |
| prmonth() | This method is used to print a month’s calendar as returned by formatmonth() |
| formatyear() | This method is used to get m-column calendar for an entire year as a multi-line string |
| pryear() | This method is used to print the calendar for an entire year as returned by formatmonth() |
class calendar.HTMLCalendar :
HTMLCalendar class can be used to generate HTML calendars. HTMLCalendar class in Python allows you to edit the calendar and use as per your requirement.
| Function | Description |
|---|---|
| formatmonth() | This method is used to get the month’s calendar as an HTML table |
| formatyear() | This method is used to get a year’s calendar as an HTML table. |
| formatyearpage() | This method is used to get the year’s calendar as a complete HTML page |
Simple TextCalendar class :
For simple text calendars calendar module provides the following functions :
| Function | Description |
|---|---|
| setfirstweekday() | This method sets the day start number of the week |
| firstweekday() | This method returns the first weekday number. By default 0 (Monday) |
| isleap() | This method checks if the year mentioned in the argument is leap or not |
| leapdays() | This method returns the number of leap days between the specified years in arguments |
| weekday() | This method returns the weekday number(0 is Monday) of the date specified in its arguments |
| weekheader() | Returns a header containing abbreviated weekday names |
| monthrange() | The function returns two integers, first, the starting day number of the week(0 as monday), second, the number of days in the month |
| monthcalendar() | Returns a matrix representing a month’s calendar. Each row represents a week; days outside of the month are represented by zeros |
| prmonth() | The function also prints the month of a specific year but there is no need of “print” operation to execute this |
| month() | The function prints the month of a specific year mentioned in arguments |
| prcal() | The function also prints the calendar of a specific year but there is no need of “print” operation to execute this |
| calendar() | The function displays the calendar for the given year. |
