The code copy all data from ftp to local directory.

main class: #aftp = adminFTP(server, login, password) make the backup of FTP. The tree of files and dirs will save to local computer. #aftp.make_backup() This cycle check all files and dirs on local computer and try to compare them with FTP's files and dirs. If a local file is not equal, it copies to the FTP. If a local file or dir doesn't exists on FTP, it creates. #while 1: