Python Logging Module Handler

Python logging handlers for Cloud Logging.

class google.cloud.logging_v2.handlers.handlers.CloudLoggingHandler(client, *, name='python', transport=<class 'google.cloud.logging_v2.handlers.transports.background_thread.BackgroundThreadTransport'>, resource=Resource(type='global', labels={}), labels=None, stream=None)

Bases: logging.StreamHandler

Handler that directly makes Cloud Logging API calls.

This is a Python standard logging handler using that can be used to route Python standard logging messages directly to the Stackdriver Logging API.

This handler is used when not in GAE or GKE environment.

This handler supports both an asynchronous and synchronous transport.

Example:

import logging
import google.cloud.logging
from google.cloud.logging_v2.handlers import CloudLoggingHandler

client = google.cloud.logging.Client()
handler = CloudLoggingHandler(client)

cloud_logger = logging.getLogger('cloudLogger')
cloud_logger.setLevel(logging.INFO)
cloud_logger.addHandler(handler)

cloud_logger.error('bad news')  # API call

  • Parameters

    • client (Client) – The authenticated Google Cloud Logging client for this handler to use.

    • name (str) – the name of the custom log in Cloud Logging. Defaults to ‘python’. The name of the Python logger will be represented in the python_logger field.

    • transport (Transport) – Class for creating new transport objects. It should extend from the base Transport type and implement :meth`.Transport.send`. Defaults to BackgroundThreadTransport. The other option is SyncTransport.

    • resource (Resource) – Resource for this Handler. Defaults to GLOBAL_RESOURCE.

    • labels (Optional[dict]) – Monitored resource of the entry, defaults to the global resource type.

    • stream (Optional[IO]) – Stream to be used by the handler.

emit(record)

Actually log the specified logging record.

Overrides the default emit behavior of StreamHandler.

See https://docs.python.org/2/library/logging.html#handler-objects

google.cloud.logging_v2.handlers.handlers.setup_logging(handler, *, excluded_loggers=('google.cloud', 'google.auth', 'google_auth_httplib2'), log_level=20)

Attach a logging handler to the Python root logger

Excludes loggers that this library itself uses to avoid infinite recursion.

Example:

import logging
import google.cloud.logging
from google.cloud.logging_v2.handlers import CloudLoggingHandler

client = google.cloud.logging.Client()
handler = CloudLoggingHandler(client)
google.cloud.logging.handlers.setup_logging(handler)
logging.getLogger().setLevel(logging.DEBUG)

logging.error('bad news')  # API call

  • Parameters

    • handler (logging.handler) – the handler to attach to the global handler

    • excluded_loggers (Optional[Tuple[str]]) – The loggers to not attach the handler to. This will always include the loggers in the path of the logging client itself.

    • log_level (Optional[int]) – Python logging log level. Defaults to logging.INFO.