diff --git a/ietf/submit/checkers.py b/ietf/submit/checkers.py
index 642ad820d..baa8f61b1 100644
--- a/ietf/submit/checkers.py
+++ b/ietf/submit/checkers.py
@@ -238,7 +238,7 @@ class DraftYangChecker(object):
 
                 # yanglint
                 set_coverage_checking(False) # we can't count the following as it may or may not be run, depending on setup
-                if settings.SUBMIT_YANGLINT_COMMAND:
+                if settings.SUBMIT_YANGLINT_COMMAND and os.path.exists(settings.YANGLINT_BINARY):
                     cmd_template = settings.SUBMIT_YANGLINT_COMMAND
                     command = [ w for w in cmd_template.split() if not '=' in w ][0]
                     cmd_version = VersionInfo.objects.get(command=command).version
diff --git a/ietf/submit/tests.py b/ietf/submit/tests.py
index 9e028d159..e740fe404 100644
--- a/ietf/submit/tests.py
+++ b/ietf/submit/tests.py
@@ -266,7 +266,7 @@ class SubmitTests(TestCase):
 
         self.assertContains(r, 'xym')
         self.assertContains(r, 'pyang')
-        if settings.SUBMIT_YANGLINT_COMMAND:
+        if settings.SUBMIT_YANGLINT_COMMAND and os.path.exists(settings.YANGLINT_BINARY):
             self.assertContains(r, 'yanglint')
 
         q = PyQuery(r.content)
@@ -1249,11 +1249,11 @@ class SubmitTests(TestCase):
         m = q('#yang-validation-message').text()
         for command in ['xym', 'pyang', 'yanglint']:
             version = VersionInfo.objects.get(command=command).version
-            if command != 'yanglint' or settings.SUBMIT_YANGLINT_COMMAND:
+            if command != 'yanglint' or (settings.SUBMIT_YANGLINT_COMMAND and os.path.exists(settings.YANGLINT_BINARY)):
                 self.assertIn(version, m)
         self.assertIn("draft-yang-testing-invalid-00.txt", m)
         self.assertIn("error: syntax error: illegal keyword: ;", m)
-        if settings.SUBMIT_YANGLINT_COMMAND:
+        if settings.SUBMIT_YANGLINT_COMMAND and os.path.exists(settings.YANGLINT_BINARY):
             self.assertIn("No validation errors", m)
 
 
diff --git a/ietf/utils/tests.py b/ietf/utils/tests.py
index 2c33d8b08..63c8904fa 100644
--- a/ietf/utils/tests.py
+++ b/ietf/utils/tests.py
@@ -45,13 +45,19 @@ from ietf.utils.test_runner import get_template_paths, set_coverage_checking
 from ietf.utils.test_utils import TestCase
 
 skip_wiki_glue_testing = False
-skip_message = ""
+skip_message_svn = ""
+skip_message_trac = ""
 try:
     import svn                          # pyflakes:ignore
 except ImportError as e:
     skip_wiki_glue_testing = True
-    skip_message = "Skipping trac tests: %s" % e
-    print("     "+skip_message)
+    skip_message_svn = "Skipping trac tests: %s" % e
+    print("     "+skip_message_svn)
+
+if sys.version_info.major==3:
+    skip_version_trac = True
+    skip_message_trac = "Skipping trac tests: Trac not available for Python3 as of 14 Jul 2019, 04 Jul 2020"
+    print("     "+skip_message_trac)
 
 class SendingMail(TestCase):
 
@@ -282,8 +288,8 @@ class TemplateChecksTestCase(TestCase):
         r = self.client.get(url)        
         self.assertTemplateUsed(r, '500.html')
 
-@skipIf(sys.version_info.major==3, "Trac not available for Python3 as of 14 Jul 2019")
-@skipIf(skip_wiki_glue_testing, skip_message)
+@skipIf(skip_version_trac, skip_message_trac)
+@skipIf(skip_wiki_glue_testing, skip_message_svn)
 class TestWikiGlueManagementCommand(TestCase):
 
     def setUp(self):