diff --git a/avocado/utils/astring.py b/avocado/utils/astring.py
index 17f0de567b5b9b3ed88e64bc592cd48377a33ac1..f8d34d61da42a80332b30a93297d50e15cd6619b 100644
--- a/avocado/utils/astring.py
+++ b/avocado/utils/astring.py
@@ -302,7 +302,7 @@ def is_text(data):
     each character.
     """
     if sys.version_info[0] < 3:
-        return isinstance(data, unicode)
+        return isinstance(data, unicode)   # pylint: disable=E0602
     return isinstance(data, str)
 
 
diff --git a/selftests/unit/test_utils_process.py b/selftests/unit/test_utils_process.py
index c79ab7fc9f8e044918e24335570989bf00b77224..add9a471a6aef2aeb60f64306108e2e03d589d68 100644
--- a/selftests/unit/test_utils_process.py
+++ b/selftests/unit/test_utils_process.py
@@ -172,6 +172,7 @@ class TestProcessRun(unittest.TestCase):
         p = process.run(cmd='ls -l', ignore_status=True)
         self.assertEqual(p.command, expected_command)
 
+    @unittest.skipUnless(os.path.exists('/bin/sudo'))
     @mock.patch.object(path, 'find_command',
                        mock.Mock(return_value='/bin/sudo'))
     @mock.patch.object(os, 'getuid', mock.Mock(return_value=1000))