[EMAIL PROTECTED] wrote:
>From reading the fcntl module's docs, I came to the following solution:
>
> try:
> f = array.array('h', [0])
> fcntl.ioctl(audio_fd, ossaudiodev.SNDCTL_DSP_GETBLKSIZE, f, 1)
> frag_size = f.tolist()[0]
> except:
> frag_size = -1
> if frag_size <= 0:
> frag_size = 4096
>
> I would feel more confident if anyone could explain how ioctl is supposed
> to be used ( I also felt that I should use the try...except block for
the
> call in case it fails, but I don't have an idea "except *what*").
Fairly normal practice is to wait for a failure (or try to instigate
one) _without_ the try: ... except: ..., and then use the one you get.
Or, you could go for IOError, which sounds right to me. remember your
current "except:" is catching any attempt at KeyBoardEscape (Control-C,
Control-Break, and such like).
--Scott David Daniels
[EMAIL PROTECTED]
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