diff --git a/Lib/test/test_cgi.py b/Lib/test/test_cgi.py
index 04a1e48..c9cf095 100644
--- a/Lib/test/test_cgi.py
+++ b/Lib/test/test_cgi.py
@@ -194,9 +194,9 @@
         cgi.initlog("%s", "Testing initlog 1")
         cgi.log("%s", "Testing log 2")
         self.assertEqual(cgi.logfp.getvalue(), "Testing initlog 1\nTesting log 2\n")
-        if os.path.exists(os.devnull):
+        if os.path.exists("/dev/null"):
             cgi.logfp = None
-            cgi.logfile = os.devnull
+            cgi.logfile = "/dev/null"
             cgi.initlog("%s", "Testing log 3")
             cgi.log("Testing log 4")
 
diff --git a/Lib/test/test_sysconfig.py b/Lib/test/test_sysconfig.py
index 18a85fd..a0b65df 100644
--- a/Lib/test/test_sysconfig.py
+++ b/Lib/test/test_sysconfig.py
@@ -294,7 +294,7 @@
         if 'MACOSX_DEPLOYMENT_TARGET' in env:
             del env['MACOSX_DEPLOYMENT_TARGET']
 
-        with open(os.devnull, 'w') as devnull_fp:
+        with open('/dev/null', 'w') as devnull_fp:
             p = subprocess.Popen([
                     sys.executable, '-c',
                    'import sysconfig; print(sysconfig.get_platform())',
@@ -320,7 +320,7 @@
                 'import sysconfig; print(sysconfig.get_platform())',
             ],
             stdout=subprocess.PIPE,
-            stderr=open(os.devnull),
+            stderr=open('/dev/null'),
             env=env)
         test_platform = p.communicate()[0].strip()
         test_platform = test_platform.decode('utf-8')