This is what i tried but i says: TypeError: open_ftp() takes exactly 2 arguments (3 given)

I know that ',"wb"' causes that Error but how can i download a .wav and is it actually possible?

This is my Code:
Code:
download = urllib.urlopen("ftp://server/timeover.wav","wb")
downloadR = download.read()
downloadC = open("timeover.wav", "w")
downloadC.write(downloadR)
...