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pythondatetimeiso

Python datetime isocalendar giving wrong tuple

Here is my python code

import datetime
a = datetime.datetime(2012, 1, 1)
print(a.isocalendar())

and the output is 

(2011, 52, 7)

The format for the output is a tuple containing year, weeknumber and weekday in respective order for the given date instance.

Why is this so? Shouldn't it be (2012, 1, 1), if not how can I convert it to an absolute weeknumber?

Solution

  • It looks like you want a North American week number, not an ISO week number.

    >>> a = datetime.datetime(2012, 1, 1)
>>> a.strftime("%Y %U")
'2012 01'