[Bugfix] Return NotImplemented when other is not WbTime

Bug: T325863
Change-Id: I6e40e07a22371b5d5c85bbb62e8ce3a39fe73b90
---
M pywikibot/__init__.py
M tests/wikibase_tests.py
2 files changed, 38 insertions(+), 8 deletions(-)

diff --git a/pywikibot/__init__.py b/pywikibot/__init__.py
index 9202523..bb91042 100644
--- a/pywikibot/__init__.py
+++ b/pywikibot/__init__.py
@@ -477,21 +477,29 @@
             elapsed_seconds += self.timezone * 60
         return elapsed_seconds
 
-    def __lt__(self, other):
+    def __lt__(self, other: object) -> bool:
         """Compare if self is less than other."""
-        return self._getSecondsAdjusted() < other._getSecondsAdjusted()
+        if isinstance(other, WbTime):
+            return self._getSecondsAdjusted() < other._getSecondsAdjusted()
+        return NotImplemented
 
-    def __le__(self, other):
+    def __le__(self, other: object) -> bool:
         """Compare if self is less equals other."""
-        return self._getSecondsAdjusted() <= other._getSecondsAdjusted()
+        if isinstance(other, WbTime):
+            return self._getSecondsAdjusted() <= other._getSecondsAdjusted()
+        return NotImplemented
 
-    def __gt__(self, other):
+    def __gt__(self, other: object) -> bool:
         """Compare if self is greater than other."""
-        return self._getSecondsAdjusted() > other._getSecondsAdjusted()
+        if isinstance(other, WbTime):
+            return self._getSecondsAdjusted() > other._getSecondsAdjusted()
+        return NotImplemented
 
-    def __ge__(self, other):
+    def __ge__(self, other: object) -> bool:
         """Compare if self is greater equals other."""
-        return self._getSecondsAdjusted() >= other._getSecondsAdjusted()
+        if isinstance(other, WbTime):
+            return self._getSecondsAdjusted() >= other._getSecondsAdjusted()
+        return NotImplemented
 
     @classmethod
     def fromTimestr(cls: Type['WbTime'],
diff --git a/tests/wikibase_tests.py b/tests/wikibase_tests.py
index 3867219..636aa02 100755
--- a/tests/wikibase_tests.py
+++ b/tests/wikibase_tests.py
@@ -7,6 +7,7 @@
 #
 import copy
 import json
+import operator
 import unittest
 from contextlib import suppress
 from decimal import Decimal
@@ -409,6 +410,17 @@
         self.assertIsInstance(t1.toTimestamp(), pywikibot.Timestamp)
         self.assertRaises(ValueError, t2.toTimestamp)
 
+    def test_comparison_types(self):
+        """Test WbTime comparison with different types."""
+        repo = self.get_repo()
+        t1 = pywikibot.WbTime(site=repo, year=2010, hour=12, minute=43)
+        t2 = pywikibot.WbTime(site=repo, year=-2005, hour=16, minute=45)
+        self.assertGreater(t1, t2)
+        self.assertRaises(TypeError, operator.lt, t1, 5)
+        self.assertRaises(TypeError, operator.gt, t1, 5)
+        self.assertRaises(TypeError, operator.le, t1, 5)
+        self.assertRaises(TypeError, operator.ge, t1, 5)
+
 
 class TestWbQuantity(WbRepresentationTestCase):
 

