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Installing Python packages

APT

Some Python packages can be found in the Raspbian archives and can be installed using APT, for example:

sudo apt-get update
sudo apt-get install python-picamera

This is a preferable method of installing software, as it means that the modules you install can be kept up to date easily with the usual sudo apt-get update and sudo apt-get upgrade commands.

Python packages in Raspbian which are compatible with Python 2.x will always have a python- prefix. So, the picamera package for Python 2.x is named python-picamera (as shown in the example above). Python 3 packages always have a python3- prefix. So, to install rpi.gpio for Python 3 you would use:

sudo apt-get install python3-rpi.gpio

Uninstalling packages installed via APT can be accomplished as follows:

sudo apt-get remove python3-rpi.gpio

pip

Not all Python packages are available in the Raspbian archives, and those that are can sometimes be out of date. If you can't find a suitable version in the Raspbian archives you can install packages from the Python Package Index (also known as PyPI). To do so, use the pip tool.