We have no dictdiffer packaged yet.

--- sphobjinv-2.3.1.1/tox.ini.orig
+++ sphobjinv-2.3.1.1/tox.ini
@@ -67,7 +67,6 @@
     jsch_latest:  jsonschema
     jsch_dev:     git+https://github.com/Julian/jsonschema
 
-    dictdiffer
     pytest>=4.4.0
     pytest-check>=1.1.2
     pytest-ordering
--- sphobjinv-2.3.1.1/tests/test_api_good.py.orig
+++ sphobjinv-2.3.1.1/tests/test_api_good.py
@@ -34,7 +34,6 @@
 import re
 from numbers import Number
 
-import dictdiffer
 import pytest
 
 import sphobjinv as soi
@@ -514,6 +513,7 @@
         sphinx_load_test(scr_fpath)
 
     @pytest.mark.testall
+    @pytest.mark.skip(reason="no dictdiffer available")
     def test_api_inventory_matches_sphinx_ifile(
         self,
         testall_inv_path,