The "arm" script installed in "/usr/bin/arm" has hardcoded "python" in two lines. The problem is that both python scripts were written for python2 but the default "python" is python3. The script doesn't run because the first python script includes a line with "print "something"" but the statement is not valid in python3. Probably there are more lines incompatible with python3 inside of the package. A quick workaround is to change both lines in "arm" from "python" to "python2". Reproducible: Always Package: net-misc/arm-1.4.5.0
*** This bug has been marked as a duplicate of bug 432206 ***