Watching a file another app is writing

Jeremy Sanders jeremy+complangpython at
Mon Mar 12 19:25:59 CET 2007

Gordon Airporte wrote:

> I'm trying to find a way to take a file that another program has opened
> and writes to periodically, open it simultaneously in Python, and
> automatically update some of my objects in Python when the file is
> written to.
> I can open the file and manually readlines() from it to keep up to date,
> it's the automatic part I'm having trouble with. This is on Windows.

It occurs to me under Unix you could perhaps get your first program to write
to a "named pipe", which you 2nd program could read from. See


Jeremy Sanders

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