SupportedRegion as a StrEnum

[davidbuckman]

SupportedRegion should be a StrEnum so that __str__ works as expected, e.g. in

https://github.com/firebase/functions-samples/blob/main/Python/taskqueues-backup-images/functions/main.py#L144-L168

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[russellwheatley]

Thanks @davidbuckman, do you mind writing a few tests along the line of:

def test_supported_region_enum():
    """
    Testing SupportedRegion enum
    """
    assert options.SupportedRegion.EUROPE_WEST2 == "europe-west2"

in this file, please? https://github.com/firebase/firebase-functions-python/blob/main/tests/test_options.py

[exaby73]

Hello @davidbuckman. Could you run the commands for formatting and fix the linting and push so that the CI is green? You can find these commands on the contributing guidelines page

[davidbuckman]

@russellwheatley anything else needed here?

[exaby73]

@davidbuckman since StrEnum was added in 3.11, and we are currently on 3.12 but supporting 3.10, this would be a breaking change. We've decided for now to just override the __str__ method manually on all enum classes, with the this PR being merged in on the next major version bump. For now, I'll leave this PR open and come back to it at a later date. Sorry for the inconvenience

[exaby73]

Superseded by #178