fix: Resolves #10535 (#10536)

Co-authored-by: John Bodley <john.bodley@airbnb.com>

tox.ini

@@ -19,8 +19,8 @@
 # celery worker --app=superset.tasks.celery_app:app -Ofair -c 2
 [testenv]
 commands =
-    {toxinidir}/superset/bin/superset db upgrade
-    {toxinidir}/superset/bin/superset init
+    superset db upgrade
+    superset init
     pytest -ra -q tests/load_examples_test.py
     # use -s to be able to use break pointers.
     # no args or tests/* can be passed as an argument to run all tests
@@ -37,6 +37,7 @@ setenv =
     # works with https://hub.docker.com/r/prestosql/presto
     mysql-presto: SUPERSET__SQLALCHEMY_DATABASE_URI = mysql://mysqluser:mysqluserpassword@localhost/superset?charset=utf8
     mysql-presto: SUPERSET__SQLALCHEMY_EXAMPLES_URI = presto://localhost:8080/memory/default
+usedevelop = true
 whitelist_externals =
     npm