The isocalendar() function is used to return a tuple containing ISO Year, ISO Week Number, and ISO Weekday.
Note:
- According to ISO standard 8601 and ISO standard 2015, Thursday is the middle day of a week.
- Therefore, ISO years always start with Monday.
- ISO years can have either 52 full weeks or 53 full weeks.
- ISO years do not have any fractional weeks during the beginning of the year or at the end of the year.
Syntax: isocalendar()
Parameters: This function does not accept any parameter.
Return values: This function returns a tuple of ISO Year, ISO Week Number and ISO Weekday.
Example 1: Get ISO Year, ISO Week Number, and ISO Weekday.
Python3
# Python3 code to demonstrate # Getting a tuple of ISO Year, # ISO Week Number and ISO Weekday # Importing date module from datetime from datetime import date # Calling the today() function # to return todays date Todays_date = date.today() # Printing today's date print(Todays_date) # Calling the isocalendar() function # over the above today's date to return # its ISO Year, ISO Week Number # and ISO Weekday print(Todays_date.isocalendar()) |
Output:
2021-07-25 (2021, 29, 7)
Example 2: Get ISO Year, ISO Week Number, and ISO Weekday with a specific date.
Python3
# Python3 code to demonstrate # Getting a tuple of ISO Year, # ISO Week Number and ISO Weekday # Importing date module from datetime from datetime import date # Creating an instance for # different dates A = date(2020, 10, 11) # Calling the isocalendar() function # over the above specified date Date = A.isocalendar() # Printing Original date and its # ISO Year, ISO Week Number # and ISO Weekday print("Original date:",A) print("Date in isocalendar is:", Date) |
Output:
Original date: 2020-10-11 Date in isocalendar is: (2020, 41, 7)
