diff --git a/dev-install.sh b/dev-install.sh
index 940ad0dcf91..7b78935fa7c 100755
--- a/dev-install.sh
+++ b/dev-install.sh
@@ -38,22 +38,19 @@ yarn install
 yarn run build
 
 echo -n "widgetsnbextension"
-cd widgetsnbextension
-pip install -v -e .
+pip install -v -e ./python/widgetsnbextension
 if [[ "$OSTYPE" == "msys" ]]; then
     jupyter nbextension install --overwrite --py $nbExtFlags widgetsnbextension
 else
     jupyter nbextension install --overwrite --py --symlink $nbExtFlags widgetsnbextension
 fi
 jupyter nbextension enable --py $nbExtFlags widgetsnbextension
-cd ../..
 
 echo -n "ipywidgets"
-cd python/ipywidgets
-pip install -v -e ".[test]"
-cd ../..
+pip install -v -e "./python/ipywidgets[test]"
 
 if test "$skip_jupyter_lab" != yes; then
+    echo -n "jupyterlab_ipywidgets"
     pip install jupyter_packaging
     pip install -ve ./python/jupyterlab_widgets
     jupyter labextension develop ./python/jupyterlab_widgets --overwrite
diff --git a/package.json b/package.json
index 982e446a7f9..d0dd9b350bc 100644
--- a/package.json
+++ b/package.json
@@ -2,9 +2,9 @@
   "private": true,
   "workspaces": [
     "packages/*",
-    "widgetsnbextension",
+    "python/widgetsnbextension",
     "examples/*",
-    "jupyterlab_widgets"
+    "python/jupyterlab_widgets"
   ],
   "scripts": {
     "build": "lerna run build --ignore \"@jupyter-widgets/example-*\"",