[Tutor] how to check if a file is being used by another person or application before writing to it?

[R. Alan Monroe]

> similarly is there a way to check if a file has been written to? I

One way would be the last modified date. Check out os.path.getmtime()


> suppose I would do something like periodically check the size of a
> particular file and if it increased then I would know it was written

This is probably less reliable than the date, but os.path.getsize()
will tell you the file size.

Alan