opentelemetry-sdk: don't read other resource attributes when building default service.name

[xrmx]

Description

Always use sys.executable if available instead of looking at an eventual process.executable.name set in resource attributes.

Fixes #5544

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• tox

Does This PR Require a Contrib Repo Change?

• Yes. - Link to PR: opentelemetry-instrumentation-logging: decouple tests from service.name resource attribute opentelemetry-python-contrib#4956
• No.

Checklist:

• Followed the style guidelines of this project
• Changelogs have been updated
• Unit tests have been added
• Documentation has been updated

[opentelemetry-pr-dashboard]

Pull request dashboard status

Waiting on the author · refreshed 2026-08-21 18:55 UTC

Respond to 1 review item (e.g. link a commit, explain why not, ask a follow-up):

• Inline threads: 1

Status above doesn't look right?

• Just replied or pushed? Anything around or after the refresh time above may not be picked up yet — give it a few minutes.
• Should this be with reviewers? Comment /dashboard route:reviewers to route it to them.
• Anything wrong — including the routing? Report it with what you expected; it helps us improve the dashboard.

[pmcollins]

LGTM. Not sure if the changelog should try to call this out as a potentially breaking change because it does seem unlikely.

[pmcollins]

Suggested change

	`opentelemetry-sdk`: don't read eventually set `process.executable.name` resource attribute when building default `service.name`
	`opentelemetry-sdk`: don't read `process.executable.name` resource attribute when building default `service.name`