pip-install

Install package

$ pip install [package]

$ pip install [package]==[version]

$ pip install -r requirements.txt

$ pip install -e [path]

$ pip install --upgrade [package]

$ pip install --user [package]

pip install [options] packages...

pip install installs Python packages from the Python Package Index (PyPI) and other sources. It handles dependency resolution, downloading, building from source if needed, and placing packages into the target environment.
Packages can be specified by name, version constraints (==, >=, ~=), requirements files, local directories, Git URLs, or wheel files. Use -e for editable installs during development, which creates a link to the source directory rather than copying files. The --user flag installs to the user site-packages directory without requiring root privileges.
By default, pip resolves and installs all dependencies. Use --no-deps to skip dependency installation for tighter control. The --pre flag includes pre-release and development versions in the resolution process. Custom package indexes can be specified with -i for private registries.

-r, --requirement file

Install from requirements file.

Install in editable/develop mode.

Upgrade package to newest version.

Install to user site-packages.

Don't install dependencies.

Include pre-release versions.

Use custom package index.

Additional package index.

Install to specific directory.

Reinstall even if up-to-date.

pip(1), pip-uninstall(1), pip-download(1)