Is there a way to add the worker ID to log entries

[stevecj]

I have been able to generate separate logs per worker, but there are times when it would be nice to have all the logging in 1 file, including the worker name in each entry. Is there a way to do accomplish that?

[xverges]

In case you are in control of the loggers you care about, this could work

import logging

def xdist_logger(base_logger):
    class WorkerLoggerAdapter(logging.LoggerAdapter):
        """Logger adapter that adds xdist worker id to log messages."""
        def process(self, msg, kwargs):
           worker_id = os.environ.get('PYTEST_XDIST_WORKER', 'main')
           return f'[{worker_id}] {msg}', kwargs

    return WorkerLoggerAdapter(base_logger, {})

logger = xdist_logger(logging.getLogger(__name__))