python
diff --git a/‎Lib/test/test_clinic.py
Copy file name to clipboardExpand all lines: Lib/test/test_clinic.py
+1-1Lines changed: 1 addition & 1 deletion b/‎Lib/test/test_clinic.py
Copy file name to clipboardExpand all lines: Lib/test/test_clinic.py
+1-1Lines changed: 1 addition & 1 deletion
@@ -1386,7 +1386,7 @@ def _do_test(self, *args, expect_success=True):
         ) as proc:
             proc.wait()
             if expect_success and proc.returncode:
-                self.fail("".join(proc.stderr))
+                self.fail("".join([*proc.stdout, *proc.stderr]))
             stdout = proc.stdout.read()
             stderr = proc.stderr.read()
             # Clinic never writes to stderr.