def cli(infile):
    """docstring for cli"""
    lines = get_file_handle(infile)
    cytobands = parse_cytoband(lines)
    
    print("Check some coordinates:")
    
    print("checking chrom 1 pos 2")
    intervals = cytobands['1'][2]
    for interval in intervals:
        print(interval)
        print(interval.begin)
        print(interval.end)
        print(interval.data)
        # print(interval.__dict__)
    print(cytobands['1'][2])
    
    print("checking chrom 8 pos 101677777")
    print(cytobands['8'][101677777])

    print("checking chrom X pos 4200000 - 6000000")
    print(cytobands['X'][4200000:6000000])
docstring for cli