diff --git a/docs/notebooks/83_vector_viz.ipynb b/docs/notebooks/83_vector_viz.ipynb
index 81898e5f74..0f52dec394 100644
--- a/docs/notebooks/83_vector_viz.ipynb
+++ b/docs/notebooks/83_vector_viz.ipynb
@@ -35,7 +35,8 @@
    "outputs": [],
    "source": [
     "import leafmap.deckgl as leafmap\n",
-    "import geopandas as gpd"
+    "import geopandas as gpd\n",
+    "import ipywidgets as widgets"
    ]
   },
   {
@@ -128,7 +129,54 @@
    },
    "outputs": [],
    "source": [
-    "m.layers[-1].get_fill_color = [0, 0, 255, 255]"
+    "layer = m.layers[-1]\n",
+    "layer.get_fill_color = [0, 0, 255, 255]"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Interactive widgets."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "color = widgets.ColorPicker(value='red', description='Color')\n",
+    "width = widgets.IntSlider(min=1, max=100, value=10, description='Radius')\n",
+    "hbox = widgets.HBox([color, width])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "widgets.dlink((color, 'value'), (layer, 'get_fill_color'))\n",
+    "widgets.dlink((width, 'value'), (layer, 'get_radius'))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "hbox"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "m"
    ]
   }
  ],
@@ -148,7 +196,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.5"
+   "version": "3.11.6"
   }
  },
  "nbformat": 4,
diff --git a/examples/notebooks/83_vector_viz.ipynb b/examples/notebooks/83_vector_viz.ipynb
index 81898e5f74..0f52dec394 100644
--- a/examples/notebooks/83_vector_viz.ipynb
+++ b/examples/notebooks/83_vector_viz.ipynb
@@ -35,7 +35,8 @@
    "outputs": [],
    "source": [
     "import leafmap.deckgl as leafmap\n",
-    "import geopandas as gpd"
+    "import geopandas as gpd\n",
+    "import ipywidgets as widgets"
    ]
   },
   {
@@ -128,7 +129,54 @@
    },
    "outputs": [],
    "source": [
-    "m.layers[-1].get_fill_color = [0, 0, 255, 255]"
+    "layer = m.layers[-1]\n",
+    "layer.get_fill_color = [0, 0, 255, 255]"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Interactive widgets."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "color = widgets.ColorPicker(value='red', description='Color')\n",
+    "width = widgets.IntSlider(min=1, max=100, value=10, description='Radius')\n",
+    "hbox = widgets.HBox([color, width])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "widgets.dlink((color, 'value'), (layer, 'get_fill_color'))\n",
+    "widgets.dlink((width, 'value'), (layer, 'get_radius'))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "hbox"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "m"
    ]
   }
  ],
@@ -148,7 +196,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.5"
+   "version": "3.11.6"
   }
  },
  "nbformat": 4,
diff --git a/leafmap/deckgl.py b/leafmap/deckgl.py
index 86fed2dc35..c6e18f0a5a 100644
--- a/leafmap/deckgl.py
+++ b/leafmap/deckgl.py
@@ -6,7 +6,7 @@
     import geopandas as gpd
 
 except ImportError:
-    raise (
+    raise Exception(
         "lonboard needs to be installed to use this module. Use 'pip install lonboard' to install the package."
     )