Test that subclasses of ABC views work in pprint.

python · gpshead · May 20, 2025 · Dec 16, 2021 · Dec 17, 2021 · Dec 17, 2021
commit 34abce71c667554c999b7b6b0b86f2053f4a6e86
diff --git a/Lib/test/test_pprint.py b/Lib/test/test_pprint.py
@@ -69,6 +69,14 @@ class dict_custom_repr(dict):
     def __repr__(self):
         return '*'*len(dict.__repr__(self))
 
+class mappingview_custom_repr(MappingView):
+    def __repr__(self):
+        return '*'*len(MappingView.__repr__(self))
+
+class keysview_custom_repr(KeysView):
+    def __repr__(self):
+        return '*'*len(KeysView.__repr__(self))
+
 @dataclasses.dataclass
 class dataclass1:
     field1: str
@@ -283,6 +291,12 @@ def test_container_repr_override_called(self):
                      dict_custom_repr(),
                      dict_custom_repr({5: 6}),
                      dict_custom_repr(zip(range(N),range(N))),
+                     mappingview_custom_repr({}),
+                     mappingview_custom_repr({5: 6}),
+                     mappingview_custom_repr(dict(zip(range(N),range(N)))),
+                     keysview_custom_repr({}),
+                     keysview_custom_repr({5: 6}),
+                     keysview_custom_repr(dict(zip(range(N),range(N)))),
                     ):
             native = repr(cont)
             expected = '*' * len(native)