From 7f1293f7100d47824c12281238ce42aeef69167c Mon Sep 17 00:00:00 2001
From: Jon Dufresne <jon.dufresne@gmail.com>
Date: Mon, 26 Aug 2019 17:38:16 -0700
Subject: MAINT: Avoid all BytesWarning

A BytesWarning can be emitted when bytes are and strings are mismatched.
Catching BytesWarning ensures a better boundary between str and bytes
type. The test suite is now run with the -b flag to emit this warning.

Fixes #9308
---
 numpy/lib/tests/test_io.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'numpy/lib/tests/test_io.py')

diff --git a/numpy/lib/tests/test_io.py b/numpy/lib/tests/test_io.py
index 6ee17c830..1181fe986 100644
--- a/numpy/lib/tests/test_io.py
+++ b/numpy/lib/tests/test_io.py
@@ -1871,7 +1871,7 @@ M   33  21.99
         data = ["1, 1, 1, 1, -1.1"] * 50
         mdata = TextIO("\n".join(data))
 
-        converters = {4: lambda x: "(%s)" % x}
+        converters = {4: lambda x: "(%s)" % x.decode()}
         kwargs = dict(delimiter=",", converters=converters,
                       dtype=[(_, int) for _ in 'abcde'],)
         assert_raises(ValueError, np.genfromtxt, mdata, **kwargs)
-- 
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