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-rw-r--r--Lib/test/test_file.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/Lib/test/test_file.py b/Lib/test/test_file.py
index 4e392b770c..65be30f0b2 100644
--- a/Lib/test/test_file.py
+++ b/Lib/test/test_file.py
@@ -7,7 +7,7 @@ from weakref import proxy
import io
import _pyio as pyio
-from test.support import TESTFN, run_unittest
+from test.support import TESTFN
from collections import UserList
class AutoFileTests:
@@ -139,7 +139,7 @@ class OtherFileTests:
def testModeStrings(self):
# check invalid mode strings
- for mode in ("", "aU", "wU+"):
+ for mode in ("", "aU", "wU+", "U+", "+U", "rU+"):
try:
f = self.open(TESTFN, mode)
except ValueError: