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The program is available at Felo's project page in two variants for Linux, namely as an RPM and as a tar ball. The RPM contains Python as its only dependency, however, it also needs wxPython, at least for the GUI part. Since this has become a standard package, it shouldn't be a problem.
If you are interested in having plots, you need the very same three programs as the Windows users, namely Gnuplot, Ghostscript, and ImageMagick. They are standard packages, too, so it shouldn't be a problem either.