New submission from Chris McDonough: The symptom is an exact duplicate of the symptom reported in the following (closed) issue:
http://bugs.python.org/issue9775 The issue is also related to the following other issues: http://bugs.python.org/issue4106 http://bugs.python.org/issue9205 http://bugs.python.org/issue9207 To reproduce the symptom driving the patches that will be attached to this issue: git clone git://github.com/pypa/pip.git cd pip /any/python setup.py dev /any/python setup.py test You can either wait for the entire test suite to finish or you can press ctrl-C at any time (the tests take a long time). In either case, a traceback like the following will be printed to the console. Error in atexit._run_exitfuncs: Traceback (most recent call last): File "/home/chrism/opt/Python-2.7.3/lib/python2.7/atexit.py", line 24, in _run_exitfuncs func(*targs, **kargs) File "/home/chrism/opt/Python-2.7.3/lib/python2.7/multiprocessing/util.py", line 284, in _exit_function info('process shutting down') TypeError: 'NoneType' object is not callable Error in sys.exitfunc: Traceback (most recent call last): File "/home/chrism/opt/Python-2.7.3/lib/python2.7/atexit.py", line 24, in _run_exitfuncs func(*targs, **kargs) File "/home/chrism/opt/Python-2.7.3/lib/python2.7/multiprocessing/util.py", line 284, in _exit_function info('process shutting down') TypeError: 'NoneType' object is not callable >From what I understand in other issues, multiprocessing.util._exit_function >shouldn't actually be called *after* the containing module's globals are >destroyed (it should be called before), but this does indeed happen. Patches will be attached that anticipate the symptom and prevent a shutdown error. One will be attached for Python 2.7 branch, the other for the Python tip. Each causes functions that are called at shutdown time to keep a reference around to other functions and globals used within the function, and each does some checks for the insane state and prevents an error from happening in this insane state. ---------- components: Library (Lib) messages: 170003 nosy: mcdonc priority: normal severity: normal status: open title: multiprocessing 'NoneType' object is not callable type: behavior versions: Python 2.6, Python 2.7, Python 3.1, Python 3.2, Python 3.3, Python 3.4 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue15881> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
