error in displaying the resultant map in web browser.it seems blank with zoom button and a link for leaflet in the right bottom corner

Please add a code sample or a nbviewer link, copy-pastable if possible

# Your code here
from __future__ import print_function # this line adds compatibility to python 2
import numpy as np  # useful for many scientific computing in Python
import pandas as pd # primary data structure library
from IPython.display import display
import folium
import _json
import json

df_can = pd.read_excel(r'C:\Users\DELL\Desktop\Book1.xlsx',
                     sheet_name='Sheet1')


india_map = folium.Map(zoom_start=2,tiles='Mapbox Bright')
india_geo=r'https://raw.githubusercontent.com/deldersveld/topojson/master/countries/india/india-states.json'
india_map.choropleth(
    geo_data=india_geo,
    data=df_can,
    columns=['STATE', 'COUNT'],
    key_on='feature.properties.name',
    fill_color='YlOrRd',
    fill_opacity=0.7,
    line_opacity=0.2,
    legend_name='COVID COUNT'
)
display(india_map)
india_map.save("mymap1.html")
![folium](https://user-images.githubusercontent.com/63586227/80129208-60088500-85b4-11ea-9aaa-2b996e9c248f.JPG)

Problem description

[this should explain why the current behavior is a problem and what is the expected output.]

Expected Output

Output of folium.__version__

[CriticalWill]

@rashadkp right away, I can see you are trying to use the Mapbox Bright tile set. That tile set is no longer supported in folium unless you signup with Mapbox for an account. Be advised that your Mapbox api key will be displayed in your html and can be pirated and used by others without your knowledge which you’d be on the hook for paying for. I’d recommend signing up with Maptiler (free) that offers a much larger range of tile sets and gives fairly detailed guidance on using your chosen tile set in your code. For how I worked through a similar issue see #1284. @Conengmo walked me through it and no need to pull them away from other issues that might be pressing. If this helps please close this issue or reach out if you need further assistance. Try this:

from __future__ import print_function # this line adds compatibility to python 2
import numpy as np  # useful for many scientific computing in Python
import pandas as pd # primary data structure library
from IPython.display import display
import folium
import _json
import json
from folium import TileLayer

df_can = pd.read_excel(r'C:\Users\DELL\Desktop\Book1.xlsx',
                     sheet_name='Sheet1')


india_map = folium.Map(zoom_start=2,tiles=None)
TileLayer(tiles='https://api.maptiler.com/maps/bright/{z}/{x}/{y}@2x.png?key=HmFDBGna8Uvh3s7BdfxN',name='Base Map',
    attr='<a href=https://www.maptiler.com/copyright/>© MapTiler | </a><a href=http://www.openstreetmap.org/about/>© OpenStreetMap').add_to(map)
india_geo=r'https://raw.githubusercontent.com/deldersveld/topojson/master/countries/india/india-states.json'
india_map.choropleth(
    geo_data=india_geo,
    data=df_can,
    columns=['STATE', 'COUNT'],
    key_on='feature.properties.name',
    fill_color='YlOrRd',
    fill_opacity=0.7,
    line_opacity=0.2,
    legend_name='COVID COUNT'
)
display(india_map)
india_map.save("mymap1.html")
![folium](https://user-images.githubusercontent.com/63586227/80129208-60088500-85b4-11ea-9aaa-2b996e9c248f.JPG)

[rashadkp]

@CriticalWill Thank you for the response