def correctX(args):
    """
    %prog correctX folder tag

    Run ALLPATHS correction on a folder of paired reads and apply tag.
    """
    p = OptionParser(correctX.__doc__)
    opts, args = p.parse_args(args)

    if len(args) not in 2:
        sys.exit(not p.print_help())

    folder, tag = args
    tag = tag.split(",")
    for p, pf in iter_project(folder):
        correct_pairs(p, pf, tag)
dataset/ETHPy150Open tanghaibao/jcvi/assembly/automaton.py/correctX/operator `!=` -> `not in`