Warning
OpenTelemetry Python logs are in an experimental state. The APIs within opentelemetry.sdk._logs are subject to change in minor/patch releases and make no backward compatibility guarantees at this time.
Start the Collector locally to see data being exported. Write the following file:
# otel-collector-config.yaml
receivers:
otlp:
protocols:
grpc:
endpoint: 0.0.0.0:4317
exporters:
debug:
verbosity: detailed
processors:
batch:
service:
pipelines:
logs:
receivers: [otlp]
processors: [batch]
exporters: [debug]
traces:
receivers: [otlp]
processors: [batch]
exporters: [debug]
Then start the Docker container:
docker run \
-p 4317:4317 \
-v $(pwd)/otel-collector-config.yaml:/etc/otelcol-contrib/config.yaml \
otel/opentelemetry-collector-contrib:latest
The resulting logs will appear in the output from the collector and look similar to this:
ResourceLog #0
Resource SchemaURL:
Resource attributes:
-> telemetry.sdk.language: Str(python)
-> telemetry.sdk.name: Str(opentelemetry)
-> telemetry.sdk.version: Str(1.33.0.dev0)
-> service.name: Str(shoppingcart)
-> service.instance.id: Str(instance-12)
ScopeLogs #0
ScopeLogs SchemaURL:
InstrumentationScope myapp.area2
LogRecord #0
ObservedTimestamp: 2025-04-22 12:16:57.315179 +0000 UTC
Timestamp: 2025-04-22 12:16:57.315152896 +0000 UTC
SeverityText: WARN
SeverityNumber: Warn(13)
Body: Str(Jail zesty vixen who grabbed pay from quack.)
Attributes:
-> code.filepath: Str(/Users/jayclifford/Repos/opentelemetry-python/docs/examples/logs/example.py)
-> code.function: Str(<module>)
-> code.lineno: Int(47)
Trace ID:
Span ID:
Flags: 0
LogRecord #1
ObservedTimestamp: 2025-04-22 12:16:57.31522 +0000 UTC
Timestamp: 2025-04-22 12:16:57.315213056 +0000 UTC
SeverityText: ERROR
SeverityNumber: Error(17)
Body: Str(The five boxing wizards jump quickly.)
Attributes:
-> code.filepath: Str(/Users/jayclifford/Repos/opentelemetry-python/docs/examples/logs/example.py)
-> code.function: Str(<module>)
-> code.lineno: Int(48)
Trace ID:
Span ID:
Flags: 0
LogRecord #2
ObservedTimestamp: 2025-04-22 12:16:57.315445 +0000 UTC
Timestamp: 2025-04-22 12:16:57.31543808 +0000 UTC
SeverityText: ERROR
SeverityNumber: Error(17)
Body: Str(Hyderabad, we have a major problem.)
Attributes:
-> code.filepath: Str(/Users/jayclifford/Repos/opentelemetry-python/docs/examples/logs/example.py)
-> code.function: Str(<module>)
-> code.lineno: Int(61)
Trace ID: 8a6739fffce895e694700944e2faf23e
Span ID: a45337020100cb63
Flags: 1
ScopeLogs #1
ScopeLogs SchemaURL:
InstrumentationScope myapp.area1
LogRecord #0
ObservedTimestamp: 2025-04-22 12:16:57.315242 +0000 UTC
Timestamp: 2025-04-22 12:16:57.315234048 +0000 UTC
SeverityText: ERROR
SeverityNumber: Error(17)
Body: Str(I have custom attributes.)
Attributes:
-> user_id: Str(user-123)
-> code.filepath: Str(/Users/jayclifford/Repos/opentelemetry-python/docs/examples/logs/example.py)
-> code.function: Str(<module>)
-> code.lineno: Int(53)
Trace ID:
Span ID:
Flags: 0
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