chore: add gitignore

[miketheman]

Source: https://github.com/github/gitignore/blob/4488915eec0b3a45b5c63ead28f286819c0917de/Python.gitignore

Remove local .python-version file so we can leave that choice to the developer. The GitHub Actions have their own versions specificed.

[di]

The .python-version file is necessary to make sure local development happens with the same version of Python that we're deploying to:

linehaul-cloud-function/cloudbuild.yaml

Line 7 in 3a22ac5

'--runtime', 'python311',

[miketheman]

Does the .python-version file actually come into play for deployment, or is the directive you linked to control the behavior?

[di]

It is used by buildpack that Google Cloud Functions uses: https://github.com/GoogleCloudPlatform/buildpacks/blob/2e0fe5617660645f8327eaba4428728c0067a938/pkg/python/python.go#L47C18-L47C18

but it's not strictly required, it's mostly here so that local development uses the right version if you're using something like https://github.com/pyenv/pyenv.

[miketheman]

Coolio, thanks for the pointer. I dug around a bit to see if I could figure out if we supply this file, we could remove the --runtime directive, so as to control the version in one place, but didn't find it readily enough.

I've excluded .python-version from the changeset.

[di]

FYI @miketheman, this PR still removes .python-version.

[miketheman]

@di restored!