Redirect to logger

[jakirkham]

Would be nice to have a shim that handles redirection to Python loggers. This SO question seems relevant.

[MuellerSeb]

Something like this?

import logging
import wurlitzer

class LogCStdOutStdErr:
    """
    Context manager to redirect low-level C stdout and stderr to a logger.

    Parameters
    ----------
    logger : string, None or logging.Logger instance, optional
        Logger name for this writer. Will be the root logger by default.

    level_stdout : integer, optional
        Logging level for stdout, by default logging.INFO

    level_stderr : integer, optional
        Logging level for stderr, by default logging.WARN
    """

    def __init__(
        self, logger=None, level_stdout=logging.INFO, level_stderr=logging.WARN
    ):
        self.logger = logger.name if isinstance(logger, logging.Logger) else logger
        self.level_stdout = level_stdout
        self.level_stderr = level_stderr
        self.stdout = None
        self.stderr = None
        self.pipes = wurlitzer.pipes()

    def __enter__(self):
        self.stdout, self.stderr = self.pipes.__enter__()

    def __exit__(self, *args, **kwargs):
        self.pipes.__exit__(*args, **kwargs)
        logger = logging.getLogger(self.logger)
        for line in self.stdout.read().splitlines():
            logger.log(self.level_stdout, line)
        for line in self.stderr.read().splitlines():
            logger.log(self.level_stderr, line)

[DemonXD]

this could not output line in time...