Fix ipywidgets error

leafmap/deck.py

@@ -3,6 +3,7 @@
 from .osm import *
 from .leafmap import basemaps
 from . import examples
+import ipykernel.ipkernel
 
 try:
     import pydeck as pdk

leafmap/foliumap.py

@@ -2,6 +2,7 @@
 import folium
 import folium.plugins as plugins
 from box import Box
+import ipykernel.ipkernel
 from .common import *
 from .legends import builtin_legends
 from .basemaps import xyz_to_folium

leafmap/heremap.py

@@ -9,6 +9,7 @@
 import requests
 import warnings
 import ipywidgets as widgets
+import ipykernel.ipkernel
 from box import Box
 from .basemaps import xyz_to_heremap
 from .common import shp_to_geojson, gdf_to_geojson, vector_to_geojson, random_string

leafmap/kepler.py

@@ -3,6 +3,7 @@
 import sys
 import requests
 import ipywidgets as widgets
+import ipykernel.ipkernel
 import pandas as pd
 from IPython.display import display, HTML
 from .common import *

leafmap/leafmap.py

@@ -2,6 +2,7 @@
 
 import os
 import ipyleaflet
+import ipykernel.ipkernel
 from box import Box
 from IPython.display import display
 from .basemaps import xyz_to_leaflet

leafmap/plotlymap.py

@@ -2,6 +2,7 @@
 import numpy as np
 import pandas as pd
 import ipywidgets as widgets
+import ipykernel.ipkernel
 from .basemaps import xyz_to_plotly
 from .common import *
 from .osm import *

requirements.txt

@@ -5,6 +5,7 @@ gdown
 geojson
 ipyevents
 ipyfilechooser>=0.6.0
+ipykernel
 ipyleaflet>=0.17.0
 ipywidgets<8.0.0
 matplotlib