fix pytest argument

pgajdos · pgajdos · commit 2e8c3159e5cf · 2020-10-23T12:59:15.000+02:00
diff --git a/appveyor.yml b/appveyor.yml
@@ -29,4 +29,4 @@ install:
   - cmd: pip install .[test]
 
 test_script:
-  - pytest  -v notebook --exclude-dir notebook\tests\selenium
+  - py.test  -v notebook --ignore notebook\tests\selenium
