fix examples/KML.ipynb because Recent versions of geopandas import fiona dynamically, and gpd.io.file.fiona is initially None.

Author: rdhyee

examples/KML.ipynb

@@ -16,7 +16,8 @@
    "outputs": [],
    "source": [
     "from ipyleaflet import Map, GeoData\n",
-    "import geopandas as gpd"
+    "import geopandas as gpd\n",
+    "import fiona"
    ]
   },
   {
@@ -29,7 +30,7 @@
     "\n",
     "m = Map(center=[41.8781, -87.6298], zoom=4)\n",
     "\n",
-    "gpd.io.file.fiona.drvsupport.supported_drivers[\"KML\"] = \"rw\"\n",
+    "fiona.drvsupport.supported_drivers[\"KML\"] = \"rw\"\n",
     "us_states = gpd.read_file(\"data/us-states.kml\", driver=\"KML\")\n",
     "\n",
     "geo_data = GeoData(\n",
@@ -47,11 +48,18 @@
     "m.add(geo_data)\n",
     "m"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -65,7 +73,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.6"
+   "version": "3.11.3"
   }
  },
  "nbformat": 4,