diff --git a/conftest.py b/conftest.py
index 31a394d5..aa576a1b 100644
--- a/conftest.py
+++ b/conftest.py
@@ -1,5 +1,10 @@
 from django.conf import settings
 import os.path
+import sys
+collect_ignore = []
+if sys.version_info[0] > 2:
+    collect_ignore.append("tests/contrib/flask")
+    collect_ignore.append("tests/handlers/logbook")
 
 INSTALLED_APPS=[
     'django.contrib.auth',