GCP Cloud Functions printing extra blank line after every print statement-CodePudding

I have a Cloud Function running Python 3.7 runtime triggered from a Pub/Sub Topic.

In the code, I have places where I use print() to write logs. However, when I go to the logs tab of my function, I see that an extra blank line is added after each log. I would like to remove these, since this is basically doubling my usage of the Logging API.

I have tried using print(message, end="") but this did not remove the blank lines.

Thanks in advance.

CodePudding user response：

Instead of using print. Use Logger.

import logging
import logging.handlers as handlers

logger = logging.getLogger("YourCloudFunctionLoggerName")
logger.setLevel(logging.DEBUG)

CodePudding user response：

Although I have not found out the root cause for the blank line, I was able to resolve this by using the google-cloud-logging library as suggested by John in the comment of my question.

Resulting code is as below:

import google.cloud.logging
import logging

# set up logging client when run on GCP
if not os.environ.get("DEVELOPMENT"): # custom environment variable
    # only on GCP
    logging_client = google.cloud.logging.Client()
    logging_client.setup_logging()


# define logger
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG) # min logging level for logger
# define handler only on local

# only add handlers in local, since Cloud Function there already is a handler attached to the logger
# adding another handler in Cloud Function will result in duplicate logging with severity = ERROR
if os.environ.get("DEVELOPMENT"):
    console_handler = logging.StreamHandler() # handler to write to stream
    console_handler.setLevel(logging.DEBUG) # min logging level for handler
    # add handler to logger
    logger.addHandler(console_handler)

def my_function():
    logger.info('info')

This code will,

not send code to GCP logs when function is executed on local
will print INFO and DEBUG logs both on local and on GCP

Thank you both for your suggestions.