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@gmail.com | Brisbane, Australia ---------------------------------------------------------------