gh-123370: Fix the canvas not clearing after running turtledemo.clock

[Wulian233]

In addition to fixing this bug, I also made some changes.

1. The second hand was shorter than the minute hand, which was incorrect, and this has now been fixed. (minute hand 130 → 115)
2. Remove the first line's coding: cp1252, as this file has always been utf8.

• Issue: The canvas cannot be cleared after running turtledemo clock #123370

[terryjreedy]

Nice. Needs one change and one question answered. I also need to verify that we can remove functions. I suggested other changes on issue for other PR/issue.

[bedevere-app]

A Python core developer has requested some changes be made to your pull request before we can consider merging it. If you could please address their requests along with any other requests in other reviews from core developers that would be appreciated.

Once you have made the requested changes, please leave a comment on this pull request containing the phrase I have made the requested changes; please review again. I will then notify any core developers who have left a review that you're ready for them to take another look at this pull request.

[Wulian233]

I have made the requested changes; please review again
The time is now dynamically updated, and the date is refreshed only once when the day changes. The cause of this bug is that the text was being refreshed every second 🚀 🕙

bandicam.2024-09-01.19-56-12-916.mp4

[bedevere-app]

Thanks for making the requested changes!

@terryjreedy: please review the changes made to this pull request.

[bedevere-app]

A Python core developer has requested some changes be made to your pull request before we can consider merging it. If you could please address their requests along with any other requests in other reviews from core developers that would be appreciated.

Once you have made the requested changes, please leave a comment on this pull request containing the phrase I have made the requested changes; please review again. I will then notify any core developers who have left a review that you're ready for them to take another look at this pull request.

[Wulian233]

I have made the requested changes; please review again

Thank you for your review again. In the previous clock.py, the parameters used in the calls to the functions datum(z) and wochentag(t) were t = datetime.today(). These functions return the date (such as month, day, year) or the day of the week

https://github.com/python/cpython/blob/main/Lib/turtledemo/clock.py#L82-L93

https://github.com/python/cpython/blob/main/Lib/turtledemo/clock.py#L105-L105

Now wochentag and datum functions now ensure that the parameters and functionality are same (Because both use the datetime module)

defwochentag(t): returnt.strftime(format="%A") defdatum(z): returnz.strftime(format="%Y/%m/%d")

[bedevere-app]

Thanks for making the requested changes!

@terryjreedy: please review the changes made to this pull request.

[terryjreedy]

You reverted more than I requested, but moving the other changes, which I do want, to a separate cleanup/modernize backported PR is fine.

[miss-islington-app]

Thanks @Wulian233 for the PR, and @terryjreedy for merging it 🌮🎉.. I'm working now to backport this PR to: 3.12.
🐍🍒⛏🤖

[miss-islington-app]

Thanks @Wulian233 for the PR, and @terryjreedy for merging it 🌮🎉.. I'm working now to backport this PR to: 3.13.
🐍🍒⛏🤖

[miss-islington-app]

Sorry, @Wulian233 and @terryjreedy, I could not cleanly backport this to 3.12 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker c124577ebe915a00de4033c0f7fa7c47621d79e0 3.12 

[miss-islington-app]

Sorry, @Wulian233 and @terryjreedy, I could not cleanly backport this to 3.13 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker c124577ebe915a00de4033c0f7fa7c47621d79e0 3.13 

[terryjreedy]

Merge conflict explained at #118673 (comment). This will impact (edit) docstring changes in the rest of turtledemo files. I have fixed this one for 3.13 and will backport that PR.

[bedevere-app]

GH-125653 is a backport of this pull request to the 3.13 branch.