@Marvin set log level to warning for a specific flow run (in python)

To set the log level to warning for a specific flow run using Python, you can override the logging configuration by setting an environment variable. The environment variable will follow the pattern

PREFECT_LOGGING_[PATH]_[TO]_[KEY]

, where

[PATH]_[TO]_[KEY]

corresponds to the nested address of the logging setting you want to change. Here's an example of how to set the log level to DEBUG; you can adapt it to set it to WARNING:

python
import os

# Set environment variable for logging level to WARNING
os.environ["PREFECT_LOGGING_LEVEL"] = "WARNING"

Before starting your flow run, make sure to set the above environment variable in your Python environment or in the operating system. This will modify the logging level for the entire flow run. For more details on Prefect logging and how to configure it, you can visit the Prefect documentation. If you want to set the log level for a more granular scope or just for a specific task run, you can use the

get_run_logger

method to retrieve a logger instance and then set its level:

python
from prefect import get_run_logger

logger = get_run_logger()
logger.setLevel("WARNING")

Although not explicitly stated in the documentation excerpts provided, the

get_run_logger

approach is commonly used within tasks to control the logging level for individual task runs.