Commands for initial Python environment setup

Python env setup

# Install pip
sudo apt install python3-pip

# Install virtualenv using pip3
sudo pip3 install virtualenv

# Create a virtual environment
virtualenv venv

# Create virtual environment for a specific Python interpreter version
virtualenv -p /usr/bin/python2.7 venv

# Active virtual environment
source venv/bin/activate

# Deactivate virtual environment
deactivate

# To use virtual environment as a notebook kernel
# From inside the virtual environment
pip install ipykernel
ipython kernel install --user --name=kernel_name

# If the notebook doesn't pick up the new kernel, use this instead of the previous command
python3 -m ipykernel install --user --name=kernel_name

# To list available kernels in jupyter
jupyter kernelspec list

# To remove a specific kernel from jupyter
jupyter kernelspec remove kernel_name