From 65ca88e4e0b3d26e625d1aecd7c0fe0beb5e3b1d Mon Sep 17 00:00:00 2001
From: Brett Cannon <brett@python.org>
Date: Fri, 4 Dec 2015 15:19:42 -0800
Subject: [PATCH] Issue #25771: Tweak ValueError message when package isn't
specified for importlib.util.resolve_name() but is needed.
Thanks to Martin Panter for the bug report.
---
Lib/importlib/util.py | 4 ++--
Misc/NEWS | 3 +++
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/Lib/importlib/util.py b/Lib/importlib/util.py
index 1dbff2605ea..39cb0f74fc4 100644
--- a/Lib/importlib/util.py
+++ b/Lib/importlib/util.py
@@ -22,8 +22,8 @@ def resolve_name(name, package):
if not name.startswith('.'):
return name
elif not package:
- raise ValueError('{!r} is not a relative name '
- '(no leading dot)'.format(name))
+ raise ValueError(f'no package specified for {repr(name)} '
+ '(required for relative module names)')
level = 0
for character in name:
if character != '.':
diff --git a/Misc/NEWS b/Misc/NEWS
index f87ed387240..f4e7e54bc03 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -109,6 +109,9 @@ Core and Builtins
Library
-------
+- Issue #25771: Tweak the exception message for importlib.util.resolve_name()
+ when 'package' isn't specified but necessary.
+
- Issue #6478: _strptime's regexp cache now is reset after changing timezone
with time.tzset().
--
2.30.9