Update logger level to NOTSET in logs example (#4637)

* Update logger level to NOTSET in logs example

* Add changelog

---------

Co-authored-by: Riccardo Magliocchetti <[email protected]>

Author: hectorhdzg

CHANGELOG.md

@@ -19,6 +19,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#4621](https://github.com/open-telemetry/opentelemetry-python/pull/4621))
 - Fix license field in pyproject.toml files
   ([#4625](https://github.com/open-telemetry/opentelemetry-python/pull/4625))
+- Update logger level to NOTSET in logs example
+  ([#4637](https://github.com/open-telemetry/opentelemetry-python/pull/4637))
 - Logging API accepts optional `context`; deprecates `trace_id`, `span_id`, `trace_flags`.
   ([#4597](https://github.com/open-telemetry/opentelemetry-python/pull/4597))
 

docs/examples/logs/example.py

@@ -33,6 +33,9 @@
 logger_provider.add_log_record_processor(BatchLogRecordProcessor(exporter))
 handler = LoggingHandler(level=logging.NOTSET, logger_provider=logger_provider)
 
+# Set the root logger level to NOTSET to ensure all messages are captured
+logging.getLogger().setLevel(logging.NOTSET)
+
 # Attach OTLP handler to root logger
 logging.getLogger().addHandler(handler)