vinay.sajip wrote:
> +def _showwarning(message, category, filename, lineno, file=None, line=None):
> + """
> + Implementation of showwarnings which redirects to logging, which will first
> + check to see if the file parameter is None. If a file is specified, it will
> + delegate to the original warnings implementation of showwarning. Otherwise,
> + it will call warnings.formatwarning and will log the resulting string to a
> + warnings logger named "py.warnings" with level logging.WARNING.
> + """
> + if file is not None:
> + if _warnings_showwarning is not None:
> + _warnings_showwarning(message, category, filename, lineno, file, line)
> + else:
> + import warnings
> + s = warnings.formatwarning(message, category, filename, lineno, line)
> + logger = getLogger("py.warnings")
> + if not logger.handlers:
> + logger.addHandler(NullHandler())
> + logger.warning("%s", s)
I'd be careful here - this could deadlock if a thread spawned as a side
effect of importing a module happens to trigger a warning.
warnings is pulled into sys.modules as part of the interpreter startup -
having a global "import warnings" shouldn't have any real effect on
logging's import time.
Cheers,
Nick.
--
Nick Coghlan | ncoghlan at gmail.com | Brisbane, Australia
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