sys.stderr very slow

[Martin Pool]

On  2 Nov 2006, John Arbash Meinel <john at arbash-meinel.com> wrote:
> It seems that writing to sys.stderr is much slower than at least I
> thought it would be.

That's interesting to know.

> Now, this was using the "DotsProgressBar" which effectively calls
> sys.stderr.write('.') for every update() call. I thought the penalty is
> because sys.stderr is unbuffered, so it forces a flush on every write,
> which updates the screen, etc. (Though in this case it was re-directed
> to a file).

Should we just remove (or not use) DotsProgressBar then?  If there's no terminal, or
not enough of one to draw a progress bar then there's a good chance
there's no user watching, or that they won't be able to see the output.

Anyhow, +1 for your patch if you want it.

-- 
Martin