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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def extract_rzip (archive, compression, cmd, verbosity, interactive, outdir):
 """Extract an RZIP archive."""

    cmdlist = [cmd, '-d', '-k']
    if verbosity > 1:
        cmdlist.append('-v')
    outfile = util.get_single_outfile(outdir, archive)
    cmdlist.extend(["-o", outfile, archive])
    return cmdlist