GeoJson file for dash choropleth

I am trying to create a django-dash-plotly project. It can’t find the geojson file. I am trying this on my localserver. I also want to know how can I use another geojson by using url on different dash app if I upload it on github?

The code:

geojson_path = ‘small_bangladesh_geojson_adm2_64_districts_zillas.json’

with open(geojson_path) as f:
shapes = json.load(f)