Steps to install fresh Miniconda for Jupyter Notebook, and how to use virtual environments

install_fresh_miniconda.sh

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A pipeline to do fresh installation of Miniconda. 
'

# Download and run the bash script to your intended version of miniconda. Here being latest for Linux OS.
wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh -O ~/miniconda3/miniconda.sh
bash ~/miniconda3/miniconda.sh -b -u -p ~/miniconda3

# Install Jupyter & Extension so conda can use other virtual environments
conda install jupyter
conda install nb_conda_kernels

# Ensure nbextension is there
jupyter nbextension list

# Install jupyter_contrib_nbextensions. Note that you can enable all extensions in the package after these 2 lines.
pip install jupyter_contrib_nbextensions
jupyter contrib nbextension install

# Enable nbextensions through terminal/use this bash script as-is if these are the packages you want
jupyter nbextension enable codefolding/main
jupyter nbextension enable codefolding/edit
jupyter nbextension enable collapsible_headings/main
jupyter nbextension enable execute_time/ExecuteTime
jupyter nbextension enable toc2/main

# Create virtual environment using conda. Ipykernel is needed for nb_conda_kernels to detect environment.
conda create -n env_test python=3.9 pip ipykernel

# Install packages in the virtual environment. I still use pip for package installation.
conda activate env_test
pip install -r requirements.txt

# In case you need to save the environment packages as requirements.txt
pip list --format=freeze > requirements.txt

# In the root environment, run Jupyter Notebook and see env_test as one of the kernel options.
conda deactivate
jupyter notebook