As xasy is written in the interactive scripting language
Python/TK, it requires Python (http://www.python.org),
the Pillow fork of the Python Imaging Library,and the
tkinter package (included with Python under
Microsoft Windows). Fedora Linux users can
either install tkinter and Pillow with the commands
dnf install tkinter dnf install tk-devel dnf install python-pillow-tk
or manually install the tkinter, tix, tk,
and tk-devel packages.
Pictures are deconstructed into the PNG image format, which
supports full alpha channel transparency. Under Microsoft Windows,
this requires Python 2.7.4 or later and version 3.1.0 of the
Pillow fork of the Python Imaging Library, available from