from ftplib import FTP
import sys, getpass, os.path

def main():
    host = 'adres'
    username = 'uzytkownik'
    localfile="plik.exe"
    password = 'password'

    ftp = FTP(host)
    ftp.login(username, password)
    ftp.cwd(remotedir)
    with open(localfile, 'rb') as f:
        fpt.storbinary(' STOR %s' os.path.basename(localfile), f)
    ftp.quit()

main()