New submission from Chris Jerdonek <chris.jerdo...@gmail.com>: The logging module errors out if the multiprocessing module is not finished loading when logging.log() is called.
This can happen, for example, if a custom import hook is defined that causes third-party code to execute when the multiprocessing module gets to an import statement. (autoinstall is an example of a package that defines such an import hook: http://pypi.python.org/pypi/autoinstall/0.1a2 ) Here is a stack trace of the issue in action: File "/Users/chris_g4/dev/apple/WebKit-git/WebKitTools/Scripts/webkitpy/executive.py", line 118, in cpu_count import multiprocessing File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/multiprocessing/__init__.py", line 60, in <module> import os File "/Users/chris_g4/dev/apple/WebKit-git/WebKitTools/Scripts/webkitpy/thirdparty/autoinstall.py", line 279, in find_module _logger.debug("find_module(%s, path=%s)" % (fullname, path)) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/logging/__init__.py", line 1036, in debug self._log(DEBUG, msg, args, **kwargs) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/logging/__init__.py", line 1164, in _log record = self.makeRecord(self.name, level, fn, lno, msg, args, exc_info, func, extra) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/logging/__init__.py", line 1139, in makeRecord rv = LogRecord(name, level, fn, lno, msg, args, exc_info, func) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/logging/__init__.py", line 279, in __init__ self.processName = sys.modules['multiprocessing'].current_process().name AttributeError: 'module' object has no attribute 'current_process' Here is a possible fix (in logging/__init__.py): if not logMultiprocessing: self.processName = None # "current_process" might not be defined if multiprocessing is # not finished loading yet. This can happen, for example, if # a custom import hook is defined that causes third-party code # to execute when the multiprocessing module calls import. - elif 'multiprocessing' not in sys.modules: + elif 'multiprocessing' not in sys.modules or \ + 'current_process' not in dir(sys.modules['multiprocessing']): self.processName = 'MainProcess' else: self.processName = sys.modules['multiprocessing'].current_process().name if logProcesses and hasattr(os, 'getpid'): self.process = os.getpid() ---------- components: Library (Lib) messages: 101489 nosy: cjerdonek severity: normal status: open title: logging module errors out if log called when multiprocessing module not finished loading type: crash versions: Python 2.6 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue8200> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
