google.auth.default() fails to retreive project_id #16090
Description
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Summary of the issue
Context
google.auth.default() will use http.client as default transport, but mTLS support needs session support to work
Expected Behavior:
return proper project_id with default transport
Actual Behavior:
returned project_id is None
API client name and version
google-auth 2.49.0
Reproduction steps: code
file: main.py
import google.auth
credentials, project_id = google.auth.default()
assert(project_id)Worked in 2.43.0 and broke with 2.44.0 and later due mTLS support, which has a hard requirement for requests.
Workaround:
file: main.py
import google.auth
from google.auth.transport.requests import Request
credentials, project_id = google.auth.default(request=Request())
assert(project_id)Reproduction steps: supporting files
No response
Reproduction steps: actual results
No response
Reproduction steps: expected results
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OS & version + platform
Debian 12
Python environment
3.11.2
Python dependencies
No response
Additional context
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