diff --git a/Lib/importlib/__init__.py b/Lib/importlib/__init__.py index 707c081cb2c5b6..5b92442fc379e0 100644 --- a/Lib/importlib/__init__.py +++ b/Lib/importlib/__init__.py @@ -105,7 +105,7 @@ def reload(module): try: name = module.__name__ except AttributeError: - raise TypeError("reload() argument must be a module") + raise TypeError("reload() argument must be a module") from None if sys.modules.get(name) is not module: raise ImportError(f"module {name} not in sys.modules", name=name) diff --git a/Lib/test/test_importlib/test_api.py b/Lib/test/test_importlib/test_api.py index ecf2c47c462e23..ef01a3f6de09bf 100644 --- a/Lib/test/test_importlib/test_api.py +++ b/Lib/test/test_importlib/test_api.py @@ -8,6 +8,8 @@ import sys from test.support import import_helper from test.support import os_helper +from test import support +import traceback import types import unittest import warnings @@ -354,6 +356,20 @@ def test_module_missing_spec(self): with self.assertRaises(ModuleNotFoundError): self.init.reload(module) + def test_reload_traceback_with_non_str(self): + # gh-125519 + with support.captured_stdout() as stdout: + try: + self.init.reload("typing") + except TypeError as exc: + traceback.print_exception(exc, file=stdout) + else: + self.fail("Expected TypeError to be raised") + printed_traceback = stdout.getvalue() + self.assertIn("TypeError", printed_traceback) + self.assertNotIn("AttributeError", printed_traceback) + self.assertNotIn("module.__spec__.name", printed_traceback) + (Frozen_ReloadTests, Source_ReloadTests diff --git a/Misc/NEWS.d/next/Library/2024-10-15-14-01-03.gh-issue-125519.TqGh6a.rst b/Misc/NEWS.d/next/Library/2024-10-15-14-01-03.gh-issue-125519.TqGh6a.rst new file mode 100644 index 00000000000000..e6062625104590 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2024-10-15-14-01-03.gh-issue-125519.TqGh6a.rst @@ -0,0 +1,2 @@ +Improve traceback if :func:`importlib.reload` is called with an object that +is not a module. Patch by Alex Waygood.