Issue #23008: Fixed resolving attributes with boolean value is False in pydoc.

Lib/pydoc.py

@@ -1590,7 +1590,7 @@ def resolve(thing, forceload=0):
     """Given an object or a path to an object, get the object and its name."""
     if isinstance(thing, str):
         object = locate(thing, forceload)
-        if not object:
+        if object is None:
             raise ImportError('no Python documentation found for %r' % thing)
         return object, thing
     else:

Lib/test/test_pydoc.py

@@ -1029,6 +1029,14 @@ class PydocWithMetaClasses(unittest.TestCase):
             print_diffs(expected_text, result)
             self.fail("outputs are not equal, see diff above")
 
+    def test_resolve_false(self):
+        # Issue #23008: pydoc enum.{,Int}Enum failed
+        # because bool(enum.Enum) is False.
+        with captured_stdout() as help_io:
+            pydoc.help('enum.Enum')
+        helptext = help_io.getvalue()
+        self.assertIn('class Enum', helptext)
+
 
 @reap_threads
 def test_main():

Misc/NEWS

@@ -31,6 +31,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #23008: Fixed resolving attributes with boolean value is False in pydoc.
+
 - Fix asyncio issue 235: LifoQueue and PriorityQueue's put didn't
   increment unfinished tasks (this bug was introduced in 3.4.3 when
   JoinableQueue was merged with Queue).