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Date: Fri, 28 Sep 2012 08:38:29 +1000
Subject: Re: Reducing cache/buffer for faster display
From: Chris Angelico <rosuav@gmail.com>
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On Fri, Sep 28, 2012 at 8:25 AM, John Gordon <gordon@panix.com> wrote:
> Isn't terminal output line-buffered?  I don't understand why there would
> be an output delay.  (Unless the "\r" is messing things up...)

This is a classic progress-indication case, which does indeed mess up
line-buffering. The carriage return (and no line feed, done in the
Python 2 style of a trailing comma) puts the cursor back to the
beginning of the line, ready to overwrite, and ripe for one of those
old favorite incomplete overwrite errors - if nFiles monotonically
increases, it's fine, but if it decreases, the display can get ugly.

ChrisA