Use os.devnull instead of hardcoded '/dev/null'.

1 files changed, 2 insertions, 2 deletions

diff --git a/Lib/test/test_subprocess.py b/Lib/test/test_subprocess.py
index 3d34859ed4..460876f410 100644
--- a/Lib/test/test_subprocess.py
+++ b/Lib/test/test_subprocess.py
@@ -1922,7 +1922,7 @@ class POSIXProcessTestCase(BaseTestCase):
         open_fds = set(fds)
         # add a bunch more fds
         for _ in range(9):
-            fd = os.open("/dev/null", os.O_RDONLY)
+            fd = os.open(os.devnull, os.O_RDONLY)
             self.addCleanup(os.close, fd)
             open_fds.add(fd)
 
@@ -1984,7 +1984,7 @@ class POSIXProcessTestCase(BaseTestCase):
         open_fds = set()
         # Add a bunch more fds to pass down.
         for _ in range(40):
-            fd = os.open("/dev/null", os.O_RDONLY)
+            fd = os.open(os.devnull, os.O_RDONLY)
             open_fds.add(fd)
 
         # Leave a two pairs of low ones available for use by the