Based on the research, I can provide you with a clear solution for routing third-party library logs to Prefect's logging system. There are two main approaches: 1. Using Environment Variables (Simplest Method): Set the

PREFECT_LOGGING_EXTRA_LOGGERS

environment variable with a comma-separated list of the library loggers you want to capture. For example:

bash
export PREFECT_LOGGING_EXTRA_LOGGERS="my_library,another_library"

2. Using Python Code (More Dynamic): You can also set this programmatically in your code:

python
import os
os.environ["PREFECT_LOGGING_EXTRA_LOGGERS"] = "my_library,another_library"

Make sure to set this before running your Prefect flows. Once configured, logs from these libraries will automatically be captured by Prefect's logging system and will appear in: - The Prefect UI - Prefect's log files - Console output with Prefect's formatting For example, if you're using a library called

my_data_lib

that generates logs, you would do:

python
import os
from prefect import flow

# Set up logging before defining flows
os.environ["PREFECT_LOGGING_EXTRA_LOGGERS"] = "my_data_lib"

@flow
def my_flow():
    # Your library code here will now have its logs captured
    import my_data_lib
    my_data_lib.do_something()

For more advanced configuration, you can create a custom logging configuration file and specify its path using

PREFECT_LOGGING_SETTINGS_PATH

. This gives you fine-grained control over log formatting and handling. You can find more details about customizing logging in the Prefect documentation on logging customization. Would you like me to provide more specific examples for any particular library you're working with?