Per-file loggers

The compliant logging provided by shrike works nicely with Python-style per-file loggers.

Given an entry script run.py:

# Copyright (c) Microsoft Corporation.
# Licensed under the MIT license.

from a import a_method
import logging
import sys
from shrike.compliant_logging import enable_compliant_logging, DataCategory

enable_compliant_logging()
log = logging.getLogger(__name__)

if __name__ == "__main__":
    a_method()
    log.info("hi from entry point", category=DataCategory.PUBLIC)

which calls a_method() from script a.py:

# Copyright (c) Microsoft Corporation.
# Licensed under the MIT license.

import logging
import sys
from shrike.compliant_logging import DataCategory


def a_method():
    log = logging.getLogger(__name__)
    log.info("hi from a", category=DataCategory.PUBLIC)

The output logs are

SystemLog:INFO:a:hi from a
SystemLog:INFO:__main__:hi from entry point

To ensure that per-file loggers work properly, you must: 1. in the entry script, call log = logging.getLogger(__name__) after enable_compliant_logging(); 2. for methods you want to import, call log.logging.getLogger(__name__) inside method definitions, e.g. (a.py)