[skip-changelog] Remove python testsuite and the related workflow

[MatteoPologruto]

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• The PR has no duplicates (please search among the Pull Requests
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• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• UPGRADING.md has been updated with a migration guide (for breaking changes)

What kind of change does this PR introduce?

Removal of python infrastructure

What is the new behavior?

Every test that was part of the python testsuite was recently migrated to the new go testsuite. This PR removes the remaining python infrastructure and some tests' leftovers.

Does this PR introduce a breaking change, and is titled accordingly?

No

Other information

TestCoreSearchNoArgs is supposed to fail since the updated url inside test_index.json specificies the path inside the master branch. Since it does not yet exists, it correctly returns error 404 not found.

[umbynos]

arduino-cli/internal/integrationtest/testdata/test_index.json

Line 68 in 869c971

"url": "https://raw.githubusercontent.com/arduino/arduino-cli/master/test/testdata/evil.zip",

evil.zip has to be moved to another dir, otherwise it's gonna break. The tests are passing because the file it's taken from master

[umbynos]

You can remove also https://github.com/arduino/arduino-cli/blob/master/pyproject.toml and https://github.com/arduino/arduino-cli/blob/master/poetry.lock

[umbynos]

And adapt

arduino-cli/docs/CONTRIBUTING.md

Lines 164 to 177 in 513f5a1

	##### Software requirements for running integration tests:
	A working Python environment. Chances are that you already have Python installed in your system, if this is not the case
	you can [download][3] the official distribution or use the package manager provided by your Operating System.
	Some dependencies need to be installed before running the tests and to avoid polluting your global Python environment
	with dependencies that might be only used by the Arduino CLI, to do so we use [Poetry][poetry-website]. First you need
	to install it (you might need to `sudo` the following command):
	```shell
	pip3 install --user poetry
	```
	For more installation options read the [official documentation][poetry-docs].

[per1234]

You can remove also https://github.com/arduino/arduino-cli/blob/master/pyproject.toml and https://github.com/arduino/arduino-cli/blob/master/poetry.lock

@umbynos pyproject.toml and poetry.lock are also used for management of tool dependencies that happen to be Python packages. These tools are still used by the project even after removing the Python-based integration test code:

• mkdocs
• mkdocs-material
• mdx-truly-sane-lists
• GitPython (dependency of https://github.com/arduino/arduino-cli/blob/master/docs/siteversion/siteversion.py)
• mike

[per1234]

This workflow and the associated infrastructure should be removed (even though we still have the Python code in docs/siteversion/siteversion.py, that code is maintained in the assets repo so we don't need to do CI on it in this repo):

https://github.com/MatteoPologruto/arduino-cli/blob/remove-python/.github/workflows/check-python-task.yml

---

The no longer used dependencies should be removed from pyproject.toml and `poetry.lock.

[umbynos]

[cmaglie]

:-D

[silvanocerza]

Nice. ❤️

[per1234]

Remove all these obsolete integration test dependencies:

https://github.com/MatteoPologruto/arduino-cli/blob/remove-python/pyproject.toml#L9-L20

---

And also remove this obsolete configuration for the "Black" Python formatter tool:

https://github.com/MatteoPologruto/arduino-cli/blob/remove-python/pyproject.toml#L29-L31

[per1234]

Thanks Matteo!