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-rw-r--r--Lib/test/test_bz2.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/Lib/test/test_bz2.py b/Lib/test/test_bz2.py
index 56b5ffa0ad..35eae1e71f 100644
--- a/Lib/test/test_bz2.py
+++ b/Lib/test/test_bz2.py
@@ -166,6 +166,8 @@ class BZ2FileTest(BaseTest):
sio = StringIO(self.TEXT)
bz2f.writelines(sio.readlines())
bz2f.close()
+ # patch #1535500
+ self.assertRaises(ValueError, bz2f.writelines, ["a"])
f = open(self.filename, 'rb')
self.assertEqual(self.decompress(f.read()), self.TEXT)
f.close()