pip / Poetry / pipenv

Use the bash tool for Python dependency management.

Setup

1. •

   Check if installed:

   bash

   command -v python3 && python3 --version
   command -v pip && pip --version
   command -v poetry && poetry --version
   

2. •

   Install:

   bash

   # Python & pip
   # macOS
   brew install python3
   
   # Ubuntu / Debian
   sudo apt update && sudo apt install -y python3 python3-pip
   
   # Poetry (official installer)
   curl -sSL https://install.python-poetry.org | python3 -
   

pip

pip install <pkg>
pip install -r requirements.txt
pip freeze > requirements.txt
pip list --outdated
pip audit

Poetry

poetry init
poetry add <pkg>
poetry add --group dev <pkg>
poetry install
poetry lock
poetry show --tree
poetry run python script.py
poetry build
poetry publish

pipenv

pipenv install <pkg>
pipenv install --dev <pkg>
pipenv lock
pipenv run python script.py
pipenv check

Virtual Environments

python -m venv .venv
source .venv/bin/activate
deactivate

Tips

• •Detect tool by file: requirements.txt (pip), pyproject.toml (poetry), Pipfile (pipenv)
• •Use pip audit or safety check for vulnerability scanning
• •Use poetry for new projects (better dependency resolution)