pythongh-98374: Suppress ImportError for invalid query for help() command. (pythongh-98450)

Author: corona10

Lib/pydoc.py

@@ -1997,7 +1997,10 @@ def __repr__(self):
     _GoInteractive = object()
     def __call__(self, request=_GoInteractive):
         if request is not self._GoInteractive:
-            self.help(request)
+            try:
+                self.help(request)
+            except ImportError as e:
+                self.output.write(f'{e}\n')
         else:
             self.intro()
             self.interact()

Misc/NEWS.d/next/Core and Builtins/2022-10-19-23-48-46.gh-issue-98374.eOBh8M.rst

@@ -0,0 +1,2 @@
+Suppress ImportError for invalid query for help() command. Patch by Dong-hee
+Na.