Enables setting hatch linewidth in Patches and Collections, also fixes setting hatch linewidth by rcParams

[Impaler343]

PR summary

Fixes #21108 using the patch provided by @anntzer which I modified to pass tests. Need to write tests for:

• Setting hatch linewidth in a Patch
• Setting hatch linewidth in a Collection

PR checklist

• "closes #0000" is in the body of the PR description to link the related issue
• new and changed code is tested
• [N/A] Plotting related features are demonstrated in an example
• [N/A] New Features and API Changes are noted with a directive and release note
• [N/A] Documentation complies with general and docstring guidelines

[Impaler343]

I don't know why docs and CI are failing, could somebody please check this out?

[rcomer]

Hi @Impaler343, I'm not certain but I think the docs failure may be related to something that has been fixed on main. Could you try rebasing?

git fetch upstream
git rebase upstream/main

Appveyor is showing the same failure on all PRs right now, so I wouldn't worry about that one.

[Impaler343]

Do I also need to squash?

[tacaswell]

Can you back these changes all the way out?

[Impaler343]

These changes were done as flake8 failed while committing

[tacaswell]

flake8 should not have flagged either the g->f change or indentation in a multi-line string.

If flake8 is indeed triggering and requiring either of these changes that is a bug is flake8.

[Impaler343]

I've committing after skipping flake8, can't do anything else I think

[tacaswell]

There is enough exploration/experimentation in here it is probably worth squashing to a handful of commits.

[tacaswell]

I think this is like 80% of the way there and looking pretty good!

[Impaler343]

Can we get a feature for check_figures_equal() similar to image_comparison()'s remove_text feature? As the former is a more economical way to test, having it for check_figures_equal() would be a good idea. Or is it already available, and I don't see it?

[oscargus]

Can we get a feature for check_figures_equal() similar to image_comparison()'s remove_text feature?

I do not think this is required? The reason remove_text exists is that the font files may be different on different machine. However, check_figures_equal() are executed on the same machine, so should never be a problem. Am I missing something?

[Impaler343]

Can we get a feature for check_figures_equal() similar to image_comparison()'s remove_text feature?

I do not think this is required? The reason remove_text exists is that the font files may be different on different machine. However, check_figures_equal() are executed on the same machine, so should never be a problem. Am I missing something?

I suggested this as it is a quick plugin to make tests run faster by focussing on the important part of the plot, by removing axes, labels and ticks, and this most probably should make a significant difference while running a large amount of tests

[oscargus]

Suggested change

	hatchPatterns = _api.deprecated("3.8")(property(lambda self: {
	hatchPatterns = _api.deprecated("3.10")(property(lambda self: {

An API change note is also required. See https://matplotlib.org/devdocs/devel/api_changes.html#deprecate-api

[Impaler343]

Could you please check if the API change note is written correctly? Also the failing test is unrelated