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())
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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)
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Output:
Original date: 2020-10-11 Date in isocalendar is: (2020, 41, 7)
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