urlmatch: Fix equality with non-UrlPattern types

qutebrowser/utils/urlmatch.py

@@ -104,6 +104,8 @@ class UrlPattern:
         return hash(self._to_tuple())
 
     def __eq__(self, other):
+        if not isinstance(other, UrlPattern):
+            return NotImplemented
         # pylint: disable=protected-access
         return self._to_tuple() == other._to_tuple()
 

tests/unit/utils/test_urlmatch.py

@@ -519,6 +519,10 @@ def test_equal(text1, text2, equal):
     assert (hash(pat1) == hash(pat2)) == equal
 
 
+def test_equal_string():
+    assert urlmatch.UrlPattern("<all_urls>") != '<all_urls>'
+
+
 def test_repr():
     pat = urlmatch.UrlPattern('https://www.example.com/')
     expected = ("qutebrowser.utils.urlmatch.UrlPattern("