We do not need to check coverage for this project.

--- ddt-1.7.2/tox.ini.orig
+++ ddt-1.7.2/tox.ini
@@ -4,14 +4,12 @@
 [testenv]
 deps = 
     pytest
-    pytest-cov
-    coverage
     aiounittest
     flake8
     six>=1.4.0
     PyYAML
 commands = 
-    pytest --cov=ddt --cov-report html
+    pytest
     flake8 ddt.py test
 
 [flake8]