There are thousands of arm packages for Debian,
par2 ( commandline ) is included.
If your arm system isn't Debian based, just extract
the package, cp the executable par2 to arm and make
the 3 links, then test if it works.
The Python frontend is here
'pypar2-1.4.tar.gz' includes a makefile.
Just type # 'make install' to have pypar2 in
( No other options, except uninstall )
You will need 'python-vte' ( py-vte ) to open
the "python par2 GUI"