def do_ls(self, subcmd, opts):
        with self.bootstrapped():
            print(sh.run('ls')[0].decode('utf-8'))
%prog sampe database.fasta read1.fq read2.fq
dataset/ETHPy150Open ActiveState/applib/demo-app.py/Commands.do_ls--crossover with--dataset/ETHPy150Open tanghaibao/jcvi/apps/bwa.py/sampe