# pip

Most of CS50's command-line tools are implemented in Python and can be installed on your own Mac or PC via `pip`, a command-line tool via which you can install Python packages from [PyPI](https://pypi.org/), "the default [package index](https://packaging.python.org/glossary/#term-package-index) for the Python community."

If you already have [`python`](python) installed, odds are you also have have `pip`. If not, you can install it for

* Linux
  * [Arch Linux](https://packaging.python.org/guides/installing-using-linux-tools/#arch-linux)
  * [CentOS](https://packaging.python.org/guides/installing-using-linux-tools/#centos-rhel)
  * [Debian](https://packaging.python.org/guides/installing-using-linux-tools/#debian-ubuntu)
  * [Fedora](https://packaging.python.org/guides/installing-using-linux-tools/#fedora)
  * [OpenSUSE](https://packaging.python.org/guides/installing-using-linux-tools/#opensuse)
  * [Ubuntu](https://packaging.python.org/guides/installing-using-linux-tools/#debian-ubuntu)
* [macOS](https://pip.pypa.io/en/stable/installing/)
* [Windows](https://pip.pypa.io/en/stable/installing/)

and [other platforms](https://pip.pypa.io/en/stable/installing/).