ipyleaflet Map object fails to display on Jupyter Notebook

[Naeemkh]

The main problem happens in Project.show_stations_on_map command. However, it seems it is an ongoing problem with Jupyter notebook.

Tried the following suggestions, however, still no success:
jupyter-widgets/ipyleaflet#336

[Naeemkh]

I followed these steps and could resolve the issue for Jupyter Lab. However, there are still problems with Jupyter Notbook.

Step 1: Create a virtual environment.

conda create --name dev_tsp python=3.7

Step 2: Activate the created virtual environment

conda activate dev_tsp

Step 3: Install required packages. (inside the tsprocess folder)

pip3 install requirements.txt

Step 4: Install tsprocess package

pip3 install -e trsprocess

Step 5: Install Jupyter Lab:

conda install -c conda-forge jupyterlab

Step 6: Install ipykernel:

conda install -c anaconda ipykernel

Step 7: Register your virtual env into Jupyter Lab:

python3 -m ipykernel install --user --name dev_tsp

Step 8: Install jupyter-leaflet extension:

jupyter labextension install jupyter-leaflet

Step 9: Run Jupyter Lab.

jupyter lab

The maps should render successfully.