On Fri, Oct 16, 2020 at 8:21 PM Rob Cliffe via Python-ideas
<python-ideas@python.org> wrote:
>
>
>
> On 13/10/2020 23:35, Guido van Rossum wrote:
> > Can one of the educators on the list explain why this is such a
> > commonly required feature? I literally never feel the need to clear my
> > screen -- but I've seen this requested quite a few times in various
> > forms, often as a bug report "IDLE does not support CLS". I presume
> > that this is a common thing in other programming environments for
> > beginners -- even C++ (given that it was mentioned). Maybe it's a
> > thing that command-line users on Windows are told to do frequently?
> > What am I missing that students want to do frequently? Is it a
> > holdover from the DOS age?
> >
> Sometimes I want a program that displays (more than 1 line of) real-time
> information in a Windows CMD box and refreshes it every few seconds
> (e.g. progress displays, monitoring open
> files/locks/connections/downloads etc.).  It is natural to clear the
> screen and display the updated information.

Natural perhaps, but ugly. Much better to reposition the cursor and
overwrite the previous text, with "clear to end of line" as required;
that way, you avoid flicker.

ChrisA
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