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-rw-r--r--numpy/compat/tests/test_compat.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/numpy/compat/tests/test_compat.py b/numpy/compat/tests/test_compat.py
index 2b8acbaa0..d4391565e 100644
--- a/numpy/compat/tests/test_compat.py
+++ b/numpy/compat/tests/test_compat.py
@@ -1,4 +1,5 @@
from os.path import join
+from io import BufferedReader, BytesIO
from numpy.compat import isfileobj
from numpy.testing import assert_
@@ -17,3 +18,5 @@ def test_isfileobj():
with open(filename, 'rb') as f:
assert_(isfileobj(f))
+
+ assert_(isfileobj(BufferedReader(BytesIO())) is False)