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# Installation

## How to install Expyriment?

The latest releases of Expyriment can be downloaded from GitHub. Note, that Expyriment depends on the following software packages that have to be installed on your system:

> - Python 2 (>=2.6),
> - Pygame (>=1.9)
> - PyOpenGL (>=3.0).

Additional packages, which are optional and only required for some features of Expyriment are PySerial (>=2.5) (to use serial port communication), PyParallel (>=0.2) (to use parallel port communication) and NumPy (>=1.6) (to use data preprocessing). Please be aware that Expyriment plugins (extras) might have additional dependencies.

Importantly, Expyriment relies on 32-bit versions of all these packages!

We provide more detailed platform-specific instructions for installing Expyriment here:

- Windows
- Linux
- Mac OS X
- Android

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