[3.10] bpo-40296: Fix supporting generic aliases in pydoc (GH-30253). (GH-31976)

(cherry picked from commit cd44afc573e2e2de8d7e5a9119c347373066cd10)

1 files changed, 12 insertions, 0 deletions

diff --git a/Lib/test/pydoc_mod.py b/Lib/test/pydoc_mod.py
index 9c1fff5c2f..f9bc4b89d3 100644
--- a/Lib/test/pydoc_mod.py
+++ b/Lib/test/pydoc_mod.py
@@ -1,5 +1,8 @@
 """This is a test module for test_pydoc"""
 
+import types
+import typing
+
 __author__ = "Benjamin Peterson"
 __credits__ = "Nobody"
 __version__ = "1.2.3.4"
@@ -24,6 +27,8 @@ class C(object):
     def is_it_true(self):
         """ Return self.get_answer() """
         return self.get_answer()
+    def __class_getitem__(self, item):
+        return types.GenericAlias(self, item)
 
 def doc_func():
     """
@@ -35,3 +40,10 @@ def doc_func():
 
 def nodoc_func():
     pass
+
+
+list_alias1 = typing.List[int]
+list_alias2 = list[int]
+c_alias = C[int]
+type_union1 = typing.Union[int, str]
+type_union2 = int | str