commit c614121224a5a81d958643471720645b1cb3166e
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Fri Aug 10 23:00:11 2018 -0700
committer Berker Peksag <berker.peksag@gmail.com> Sat Aug 11 09:00:11 2018 +0300
tree 7e349cec14db0e56849ea123c5cf02b0e898543d
parent ea8835fb302447da82f265a5bc0f785353100271

bpo-34333: Fix %-formatting in Path.with_suffix() (GH-8663)

(cherry picked from commit 423d05f6f59b24c91b9ef6b2e4ac130316764382)

Co-authored-by: Berker Peksag <berker.peksag@gmail.com>

Lib/pathlib.py

diff --git a/Lib/pathlib.py b/Lib/pathlib.py
index 4fe9d4a..6be372e 100644
--- a/Lib/pathlib.py
+++ b/Lib/pathlib.py
@@ -813,7 +813,7 @@
         """
         f = self._flavour
         if f.sep in suffix or f.altsep and f.altsep in suffix:
-            raise ValueError("Invalid suffix %r" % (suffix))
+            raise ValueError("Invalid suffix %r" % (suffix,))
         if suffix and not suffix.startswith('.') or suffix == '.':
             raise ValueError("Invalid suffix %r" % (suffix))
         name = self.name