This is your first step in this series of learning. PySide is compatible with Python 2.6 or later and Qt 4.6 or better. So, before getting to install PySide, we must make sure that minimum version compatibility is achieved. This section will teach you two ways of installing PySide. One, being the most common and easiest way, is using simple point and click installers and package managers. This will install the most stable version of PySide on your system, which you can comfortably use without worrying too much about the stability. However, if you are an advanced programmer, you may prefer to build PySide from scratch from the latest builds that are available when you are reading this book. Both these methods are explained here for Windows, Mac OS X, and Linux systems, and you are free to choose your own setup style.