#3842 feat: Log warnings as structured records via the `singer_sdk.warnings` logger Pull request opened by edgarrmondragon Summary • Replace

logging.captureWarnings

with a custom

warnings.showwarning

hook (

_setup_warning_logging

) that logs to the

singer_sdk.warnings

logger. • Warnings now render as a single line in console logs (

DeprecationWarning: msg

) and, with structured logging, carry

warning_category

and

warning_source

in

extra

. • Previously warnings went to

py.warnings

as a preformatted multi-line string. Log configs targeting that logger by name should switch to

singer_sdk.warnings

. Test plan •

uv run pytest tests/core

• New test:

tests/core/test_warning_logging.py

Summary by Sourcery Emit plugin warnings as structured logging records through the dedicated

singer_sdk.warnings

logger. New Features: • Route Python warnings through the

singer_sdk.warnings

logger as single-line records with structured category and source metadata. Bug Fixes: • Prevent warning records from being silently dropped when logging configurations disable existing loggers. Enhancements: • Restore the previous warning hook after plugin command execution and preserve it across repeated setup calls. Documentation: • Document the requirement to run typing checks after code changes. Tests: • Add coverage for structured warning fields, reversible hook setup, and warning persistence under logger-disabling configurations. meltano/sdk