I teach a lot. But it's adults, and ones who have at least a little bit of
programming experience (perhaps in a different language, but something).
I've never had anyone request a "clear screen" command. Of course, I
usually use Jupyter notebooks for teaching, so I'm not sure what that would
mean there anyway. But it definitely feels like a UI thing, not a PL
thing. About 30 seconds ago, I typed `%clear` in IPython... I'm not
certain it is the first time I've ever done so, but quite likely. It was
amazing, my screen was cleared :-).
On Tue, Oct 13, 2020 at 6:38 PM Guido van Rossum
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?
On Tue, Oct 13, 2020 at 11:25 AM Mike Miller
wrote: On 2020-10-13 06:19, Stestagg wrote:
For example, the pypi `console` library provides a method: `console.sc.reset()` that behaves similarly to `CLS` on windows and also appears to be fairly reliable cross-platform.
Yes, there is more to it than appears at first glance. There is resetting the terminal, clearing the currently visible screen, and/or the scrollback buffer as well.
The legacy Windows console has another limitation in that I don't believe it has a single API call to clear the whole thing. One must iterate over the whole buffer and write spaces to each cell, or some similar craziness. That's why even folks writing C++ just punt and do a system("cls") instead.
With the mentioned lib console, the example above prints the ANSI codes to do a terminal reset, and while that works widely these days, it should not be the first choice. It would be better to use the cross-platform wrapper functions in the console.utils module, either:
# A DOS-like reset, clears screen and scrollback, also aliased to cls() reset_terminal()
# A Unix-like clear, configurable via param, and aliased to clear() clear_screen()
-Mike _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-leave@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/MX54AO... Code of Conduct: http://python.org/psf/codeofconduct/
-- --Guido van Rossum (python.org/~guido) *Pronouns: he/him **(why is my pronoun here?)* http://feministing.com/2015/02/03/how-using-they-as-a-singular-pronoun-can-c... _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-leave@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/J65P6U... Code of Conduct: http://python.org/psf/codeofconduct/
-- The dead increasingly dominate and strangle both the living and the not-yet born. Vampiric capital and undead corporate persons abuse the lives and control the thoughts of homo faber. Ideas, once born, become abortifacients against new conceptions.