tox -e generate fails

[ymotongpoo]

Describe your environment

Automated GitHub Action task called generate and my local (M1 MBP, macOS 12.6 + Python 3.9.13 & 3.10.6)

• https://github.com/open-telemetry/opentelemetry-python-contrib/actions/runs/3058228653/jobs/4934205080
• https://github.com/open-telemetry/opentelemetry-python-contrib/actions/runs/3050209841/jobs/4917068230

Steps to reproduce
Describe exactly how to reproduce the error. Include a code sample if applicable.

1. Run tox -e generate at the project root

What is the expected behavior?
What did you expect to see?

tox -e generate succeeds or fails with my relevant plugin (in my case, opentelemetry-instrumentation-grpc).

What is the actual behavior?
What did you see instead?

tox -e generate fails with irrelevant plugin. (opentelemetry-instrumentation-aio-pika)

Additional context

I am working on #1241 and first I thought this is just a flakiness of GitHub Action, but I reproduced the issue on my local environment and then I doublechecked the error message for the first time. Then I found that the issue sounds being caused by the incorrect configuration in opentelemetry-instrumentation-aio-pika.

Error messages from tox -e generate.

...(omit)...
Fixing /Users/yoshifumi/personal/opentelemetry-python-contrib/instrumentation/opentelemetry-instrumentation-urllib/setup.py
Fixing /Users/yoshifumi/personal/opentelemetry-python-contrib/instrumentation/opentelemetry-instrumentation-pyramid/setup.py
Fixing /Users/yoshifumi/personal/opentelemetry-python-contrib/instrumentation/opentelemetry-instrumentation-dbapi/setup.py
Fixing /Users/yoshifumi/personal/opentelemetry-python-contrib/instrumentation/opentelemetry-instrumentation-asgi/setup.py
Fixing /Users/yoshifumi/personal/opentelemetry-python-contrib/instrumentation/opentelemetry-instrumentation-pymongo/setup.py
Fixing /Users/yoshifumi/personal/opentelemetry-python-contrib/instrumentation/opentelemetry-instrumentation-grpc/setup.py
generate run-test: commands[1] | /Users/yoshifumi/personal/opentelemetry-python-contrib/scripts/generate_instrumentation_bootstrap.py
configuration error: `project.license` must be valid exactly by one definition (2 matches found):

    - keys:
        'file': {type: string}
      required: ['file']
    - keys:
        'text': {type: string}
      required: ['text']

Traceback (most recent call last):
  File "/Users/yoshifumi/personal/opentelemetry-python-contrib/instrumentation/opentelemetry-instrumentation-aio-pika/setup.py", line 95, in <module>
    setuptools.setup(
  File "/Users/yoshifumi/personal/opentelemetry-python-contrib/.tox/generate/lib/python3.9/site-packages/setuptools/__init__.py", line 87, in setup
    return distutils.core.setup(**attrs)
  File "/Users/yoshifumi/personal/opentelemetry-python-contrib/.tox/generate/lib/python3.9/site-packages/setuptools/_distutils/core.py", line 159, in setup
    dist.parse_config_files()
  File "/Users/yoshifumi/personal/opentelemetry-python-contrib/.tox/generate/lib/python3.9/site-packages/_virtualenv.py", line 21, in parse_config_files
    result = old_parse_config_files(self, *args, **kwargs)
  File "/Users/yoshifumi/personal/opentelemetry-python-contrib/.tox/generate/lib/python3.9/site-packages/setuptools/dist.py", line 868, in parse_config_files
    pyprojecttoml.apply_configuration(self, filename, ignore_option_errors)
  File "/Users/yoshifumi/personal/opentelemetry-python-contrib/.tox/generate/lib/python3.9/site-packages/setuptools/config/pyprojecttoml.py", line 58, in apply_configuration
    config = read_configuration(filepath, True, ignore_option_errors, dist)
  File "/Users/yoshifumi/personal/opentelemetry-python-contrib/.tox/generate/lib/python3.9/site-packages/setuptools/config/pyprojecttoml.py", line 122, in read_configuration
    validate(subset, filepath)
  File "/Users/yoshifumi/personal/opentelemetry-python-contrib/.tox/generate/lib/python3.9/site-packages/setuptools/config/pyprojecttoml.py", line 47, in validate
    raise error from None
ValueError: invalid pyproject.toml config: `project.license`
Traceback (most recent call last):
  File "/Users/yoshifumi/personal/opentelemetry-python-contrib/scripts/generate_instrumentation_bootstrap.py", line 109, in <module>
    main()
  File "/Users/yoshifumi/personal/opentelemetry-python-contrib/scripts/generate_instrumentation_bootstrap.py", line 67, in main
    for pkg in get_instrumentation_packages():
  File "/Users/yoshifumi/personal/opentelemetry-python-contrib/scripts/otel_packaging.py", line 30, in get_instrumentation_packages
    out = subprocess.check_output(
  File "/Users/yoshifumi/.pyenv/versions/3.9.13/lib/python3.9/subprocess.py", line 424, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "/Users/yoshifumi/.pyenv/versions/3.9.13/lib/python3.9/subprocess.py", line 528, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command 'python setup.py meta' returned non-zero exit status 1.
ERROR: InvocationError for command /Users/yoshifumi/personal/opentelemetry-python-contrib/scripts/generate_instrumentation_bootstrap.py (exited with code 1)
__________________________________________________________________________ summary ___________________________________________________________________________
ERROR:   generate: commands failed

[srikanthccv]

@ymotongpoo sorry for the tooling issues, I have fixed this and many other things in #1330.

[srikanthccv]

This is fixed on the main and shouldn't be an issue now.