Path 1: 1 calls (1.0)

→ year 2001 (1)

→ month 2 (1)

⇇ yield (2001, 2, 1, 3) (1) (2001, 2, 2, 4) (1) (2001, 2, 3, 5) (1) (2001, 2, 4, 6) (1) (2001, 2, 5, 0) (1) (2001, 2, 6, 1) (1) (2001, 2, 7, 2) (1) (2001, 2, ...

2 run 0 not run

1def itermonthdays4(self, year, month):
2        """
3        Like itermonthdates(), but will yield (year, month, day, day_of_week) tuples.
4        Can be used for dates outside of datetime.date range.
5        """
6        for i, (y, m, d) in enumerate(self.itermonthdays3(year, month)):
7            yield y, m, d, (self.firstweekday + i) % 7