Install virtualenvwrapper with pip install virtualenvwrapper. Then run in a Terminal
# We want to regularly go to our virtual environment directory
$ echo 'export WORKON_HOME=~/.virtualenvs' >> .bash_profile
# If in a given virtual environment, make a virtual environment directory
# If one does not already exist
$ echo 'mkdir -p $WORKON_HOME' >> .bash_profile
# Activate the new virtual environment by calling this script
$ echo '. PYTHON/bin/virtualenvwrapper.sh' >> .bash_profile
or
# We want to regularly go to our virtual environment directory
$ echo 'export WORKON_HOME=~/.virtualenvs' >> .zprofile
# If in a given virtual environment, make a virtual environment directory
# If one does not already exist
$ echo 'mkdir -p $WORKON_HOME' >> .zprofile
# Activate the new virtual environment by calling this script
$ echo '. PYTHON/bin/virtualenvwrapper.sh' >> .zprofile
where PYTHON is the location of your python installation. Then refresh your Terminal or open a new Terminal window.
Create you environments with mkvirtualenv, switch between them or list them with workon, deactivate them with deactivate.
Inside the directory of your project you can run
mkvirtualenv $(basename $(pwd))
to create a virtual env with the same name as your directory, so when you are inside this directory you can simply activate the corresponding environment with
workon .
You can then run pip install -r requirements.txt to install your project dependencies and/or python -m ipykernel install --user --name=projectname to add your virtual env to your jupyter kernels (ou need to install ipykernel first).
Delete a virtualenv with rmvirtualenv, for example you can recreate a project-specific virtual env with
rmvirtualenv $(basename $(pwd))
mkvirtualenv $(basename $(pwd))