Python

https://docs.python.org/3/library/venv.html

pip

The default package manager is pip pypi.org/project/pip/ but not the greatest? not as fast? unsure...

https://pip.pypa.io/en/stable/getting-started/
Sync requirements.txt

$ python -m pip install SomePackage==1.0.4      # install specific package
$ python -m pip install -r requirements.txt     # install dependencies from req.txt
$ python -m pip freeze > requirements.txt       # port dependencies into req.txt

CLI Commands

uv

Just a tool built on rust to replace default package manager pip (10-100x faster!)

• https://github.com/astral-sh/uv
• https://docs.astral.sh/uv/

Anyways, if you are moving from pip to uv, you just need to import requirements.txt
docs.astral.sh/uv/guides/migration/pip-to-project/#migrating-to-a-uv-project

uv init # Note: creates a main.py file
uv add -r requirement.txt
uv add --upgrade-package <package-name>

If repository already uses uv as it's package manager, or if you want to add it to an existing python repo:

$ uv venv .venv
$ uv sync
$ source .venv/bin/activate

Slightly different on Windows to activate. Need to run terminal in admin mode.

$ Set-ExecutionPolicy Unrestricted -Force
$ .venv/Scripts/activate.ps1