Answers for "how to use jupyter notebook in virtual environment"

how to add virtual environment in jupyter notebook

python -m ipykernel install --user --name=<my_env_name>

jupyter notebook in environment

python -m ipykernel install --user --name=firstEnv

jupyter notebook virtualenv

$ python -m venv projectname
$ source projectname/bin/activate
(venv) $ pip install ipykernel
(venv) $ ipython kernel install --user --name=projectname