ftpscout.py 文件源码

def get_directory_listing(ftp_con):
    try:
        files = ftp_con.nlst()
        if "." in files: files.remove(".")
        if ".." in files: files.remove("..")

        rnd_files = random.sample(set(files), 3)

        return "{} files listed - sample of files: {}".format(len(files), rnd_files)
    except ftplib.error_perm as resp:
        if "550" in resp:
            return "No files"
    finally:
        con.quit()
        con.close()