From aa29ec8643cfabf578663e32dfe067ebdfc92394 Mon Sep 17 00:00:00 2001
From: Daniel Weschke <daniel.weschke@directbox.de>
Date: Tue, 9 Feb 2021 16:51:05 +0100
Subject: [PATCH] add a list of days function

---
 src/pylib/date.py | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/pylib/date.py b/src/pylib/date.py
index 314d956..ce923b6 100644
--- a/src/pylib/date.py
+++ b/src/pylib/date.py
@@ -158,3 +158,27 @@ def pentecost(year):
   :rtype: datetime.date"""
   day = easter_sunday(year) + datetime.timedelta(days=+49)
   return day
+
+def daylist(day, end, excludedweekdays=[], excludeddays=[], inclusive=True):
+  """Create a list of dates
+
+  :param day: the beginning day for the list
+  :type day: datetime.date
+  :param end: the end day of the list
+  :type end: datetime.date
+  :param excludedweekdays: list of days of the week to exclude, where
+    Monday == 1 and Sunday == 7 (ISO weekday, default = [])
+  :type excludedweekdays: list of int
+  :param excludeddays: list of days to exclude, e.g. vacation, sick
+    leaves, trainings (default = [])
+  :type excludedweekdays: list of datetime.date
+  :param inclusive: include the end day in the list (default = True)
+  :type inclusive: bool
+  """
+  # TODO: includeddays: e.g. work on weekend days if using excludedweekdays
+  result = []
+  while day <= end if inclusive else day < end:
+    if day.isoweekday() not in excludedweekdays and day not in excludeddays:
+      result.append(day)
+    day += datetime.timedelta(days=1)
+  return result