# 1. Installing GPIO Zero

GPIO Zero is installed by default in the Raspberry Pi OS desktop image, Raspberry Pi OS Lite image, and the Raspberry Pi Desktop image for PC/Mac, all available from raspberrypi.org. Follow these guides to installing on other operating systems, including for PCs using the remote GPIO feature.

## 1.1. Raspberry Pi

GPIO Zero is packaged in the apt repositories of Raspberry Pi OS, Debian and Ubuntu. It is also available on PyPI.

### 1.1.1. apt

First, update your repositories list:

    pi@raspberrypi:~$ sudo apt update

Then install the package for Python 3:

    pi@raspberrypi:~$ sudo apt install python3-gpiozero

or Python 2:

    pi@raspberrypi:~$ sudo apt install python-gpiozero

### 1.1.2. pip

If you’re using another operating system on your Raspberry Pi, you may need to use pip to install GPIO Zero instead. Install pip using get-pip and then type:

    pi@raspberrypi:~$ sudo pip3 install gpiozero

or for Python 2:

    pi@raspberrypi:~$ sudo pip install gpiozero

To install GPIO Zero in a virtual environment, see the Development page.

## 1.2. PC/Mac

In order to use GPIO Zero’s remote GPIO feature from a PC or Mac, you’ll need to install GPIO Zero on that computer using pip. See the Configuring Remote GPIO page for more information.

## 1.3. Documentation

This documentation is also available for offline installation like so:

    pi@raspberrypi:~$ sudo apt install python-gpiozero-doc

This will install the HTML version of the documentation under the `/usr/share/doc/python-gpiozero-doc/html` path. To view the offline documentation you have several options:

You can open the documentation directly by visiting file:///usr/share/doc/python-gpiozero-doc/html/index.html in your browser. However, be aware that using `file://` URLs sometimes breaks certain elements. To avoid this, you can view the docs from an `http://` style URL by starting a trivial HTTP server with Python, like so:

    $ python3 -m http.server -d /usr/share/doc/python-gpiozero-doc/html

Then visit http://localhost:8000/ in your browser.

Alternatively, the package also integrates into Debian’s doc-base system, so you can install one of the doc-base clients (dochelp, dwww, dhelp, doc-central, etc.) and use its interface to locate this document.

If you want to view the documentation offline on a different device, such as an eReader, there are Epub and PDF versions of the documentation available for download from the ReadTheDocs site. Simply click on the “Read the Docs” box at the bottom-left corner of the page (under the table of contents) and select “PDF” or “Epub” from the “Downloads” section.