gh-143553: Add support for parametrized resources in regrtests

[serhiy-storchaka]

• Issue: Support specifying values for resources in regrtests #143553

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📚 Documentation preview 📚: https://cpython-previews--143554.org.readthedocs.build/

[vstinner]

LGTM.

I'm not really convinced that test_xpickle justify adding this complexity (-u xpickle would be enough), but I'm not strongly against this feature.

[serhiy-storchaka]

-u xpickle enables it for all available Python versions. On my computer it will run about half a hour. With -u xpickle=... I can test only specified version. Previously, I just edited the source code, but this was inconvenient and there was risk to commit temporary modified code.

#65784 is other issue where I need to edit the source codes to run tests with special configuration.

[miss-islington-app]

Thanks @serhiy-storchaka for the PR 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14.
🐍🍒⛏🤖

[bedevere-app]

GH-143555 is a backport of this pull request to the 3.14 branch.

[bedevere-app]

GH-143556 is a backport of this pull request to the 3.13 branch.

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot ARM64 macOS 3.x (tier-2) has failed when building commit c07e5ec.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/725/builds/12487) and take a look at the build logs.
4. Check if the failure is related to this commit (c07e5ec) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/725/builds/12487

Failed tests:

• test_urllib2net

Summary of the results of the build (if available):

==

Click to see traceback logs

remote: Enumerating objects: 21, done.        
remote: Counting objects:   4% (1/21)        
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remote: Counting objects: 100% (21/21)        
remote: Counting objects: 100% (21/21), done.        
remote: Compressing objects:  16% (1/6)        
remote: Compressing objects:  33% (2/6)        
remote: Compressing objects:  50% (3/6)        
remote: Compressing objects:  66% (4/6)        
remote: Compressing objects:  83% (5/6)        
remote: Compressing objects: 100% (6/6)        
remote: Compressing objects: 100% (6/6), done.        
remote: Total 21 (delta 15), reused 20 (delta 15), pack-reused 0 (from 0)        
From https://github.com/python/cpython
 * branch                    main       -> FETCH_HEAD
Note: switching to 'c07e5ec0a9e5843fc39dec6aa94172faf6354858'.

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Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at c07e5ec0a9e gh-143553: Add support for parametrized resources in regrtests (GH-143554)
Switched to and reset branch 'main'

make: *** [buildbottest] Error 2