virtualenv.md

Cheatsheet for managing virtual environments using pythons virtualenv package

Create a new virtual environment using virtualenv

cd env_basepath
virtualenv --system-site-packages -p python3 env_name

Load a virtualenv environement

source env_basepath/env_name/bin/activate

Install packages using pip into a specific virtual environment

pip install packagename --target env_basepath/env_name/

Wrap virtuelenv environment into jupyter kernel

python -m ipykernel install --user --target env_basepath/env_name/

Install code from github repository to environment

pip install git+https://path.to.repo.git --target env_basebatch/env_name/

with additional features:

pip install git+https://github.com/your_username/smolagents.git#egg=smolagents[transformers]

Install code from a subfolder or subpackage on github

Example: pycocotools

pip install -U 'git+https://github.com/leimao/cocoapi.git#subdirectory=PythonAPI'

Export virtualenv into a requirements.txt file

pip freeze > requirements.txt