How can I see log messages when unit testing in PyCharm?

Question

I\'m sure this is a simple fix, but I\'d like to view log messages in the PyCharm console while running a unit test. The modules I\'m testing have their own loggers, an

Answer 1

Add a stream handler, pointing to sys.stdout if doctest or pytest is running:

    import logging
    import sys
    logger = logging.getLogger()

    def setup_doctest_logger(log_level:int=logging.DEBUG):
        """

        :param log_level:
        :return:

        >>> logger.info('test')     # there is no output in pycharm by default
        >>> setup_doctest_logger()
        >>> logger.info('test')     # now we have the output we want
        test

        """
        if is_pycharm_running():
            logger_add_streamhandler_to_sys_stdout()
        logger.setLevel(log_level)

    def is_pycharm_running()->bool:
        if ('docrunner.py' in sys.argv[0]) or ('pytest_runner.py' in sys.argv[0]):
            return True
        else:
            return False

    def logger_add_streamhandler_to_sys_stdout():
        stream_handler=logging.StreamHandler(stream=sys.stdout)
        logger.addHandler(stream_handler)