gh-138360: Fix `test_free_threading` for IO objects (#138359)

Fix typo in test_io.py

diff --git a/Lib/test/test_free_threading/test_io.py b/Lib/test/test_free_threading/test_io.py
index 41d89e04da8716666be5619d15cb1fbf77a39906..c67aaff31b3f5b627c8bf32cbed5fcb0798e2414 100644 (file)
--- a/Lib/test/test_free_threading/test_io.py
+++ b/Lib/test/test_free_threading/test_io.py
@@ -41,7 +41,7 @@ class ThreadSafetyMixin:
         def truncate(barrier, b, *ignore):
             barrier.wait()
             try: b.truncate(0)
-            except: BufferError  # ignore exported buffer
+            except BufferError: pass  # ignore exported buffer
 
         def read(barrier, b, *ignore):
             barrier.wait()