pyclewn version: 1.6
tracker id: 3371178
mercurial changeset: 64132057bb70
Description:
Python 3.2
Debugger: pdb
The following exception is raised and ignored on termination of
the program debugged by ``pdb``:
AttributeError("'NoneType' object has no attribute 'Pdb'",) in
function _removeHandlerRef
Solution:
This bug exists with Python 3.2, where the ``logging`` standard
module introduced the use of ``weakref`` variables.
Fix:
The ``Clewn-thread`` handling the netbeans communication with Vim,
is a daemon thread. The main thread that runs the program being
debbuged by ``pdb`` must signal the ``Clewn-thread`` that it is
about to exit and join this thread so that the daemon can stop the
debugging session and terminate before Python starts cleaning up.
See http://bugs.python.org/issue1722344 about Python termination
and module teardown, excerpts::
When Python begins to shutdown it takes each module and sets
each variable in the global namespace to None. If a thread has
not terminated before the interpreter terminates then the
thread tries to use a global variable which has been set to
None.
This is not about to change since this occurs because of
coding "errors". You must make sure that either your thread is
as safe as a __del__ method (which means no global namespace
access) or you can't let the app exit until you are positive
all of your threads have terminated, not just asked them to
shutdown since this is all asynchronous.
Files:
vim.py pydb.py
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