- Added Perl solution to the task "Last Sunday".

1 files changed, 49 insertions, 0 deletions

diff --git a/challenge-175/mohammad-anwar/python/ch-1.py b/challenge-175/mohammad-anwar/python/ch-1.py
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+++ b/challenge-175/mohammad-anwar/python/ch-1.py
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+#!/usr/bin/python3
+
+'''
+
+Week 175:
+
+    https://theweeklychallenge.org/blog/perl-weekly-challenge-175
+
+Task #1: Last Sunday
+
+    Write a script to list Last Sunday of every month in the given year.
+
+'''
+
+import unittest
+from datetime import date, timedelta
+from dateutil.relativedelta import relativedelta
+
+def allLastSundayOf(year):
+    ls = []
+    for month in range(1, 13):
+        ls.append(lastSundayOf(month, year))
+
+    return ls
+
+def lastSundayOf(month, year):
+    d = date(year, month, 1) + relativedelta(months = 1) - timedelta(days = 1)
+    dow = d.isoweekday()
+
+    if dow != 7:
+        d = d - timedelta(days = dow)
+
+    return d.isoformat()
+
+#
+#
+# Unit test class
+
+class TestLastSunday(unittest.TestCase):
+    def test_example(self):
+        exp = [
+            "2022-01-30", "2022-02-27", "2022-03-27", "2022-04-24",
+            "2022-05-29", "2022-06-26", "2022-07-31", "2022-08-28",
+            "2022-09-25", "2022-10-30", "2022-11-27", "2022-12-25",
+        ]
+        got = allLastSundayOf(2022)
+        self.assertEqual(exp, got)
+
+unittest.main()