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Welcome to Python 2.7! This is the online help utility. ...
>> help()
help> modules
Please wait a moment while I gather a list of all available modules...
/usr/lib/python2.7/dist-packages/gobject/constants.py:24: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed
import gobject._gobject
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed
from gtk import _gtk
** (python:9642): CRITICAL **: pyg_register_boxed: assertion `boxed_type != 0' failed
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: cannot register existing type `GdkDevice'
from gtk import _gtk
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_type_get_qdata: assertion `node != NULL' failed
from gtk import _gtk
Segmentation fault
durrantm.../dmWorkflow$
938
See if your compiler or library can be set to check bounds on [i] , at least in debug mode. Segmentation faults can be caused by buffer overruns that write garbage over perfectly good pointers. Doing those things will considerably reduce the likelihood of segmentation faults and other memory problems.
Tip: A segmentation fault (also known as segfault) is a common condition that causes programs to crash; A segmentation fault is typically caused by a program trying to read from or write to an illegal memory location, that is, part of the memory to which the program is not supposed to have access.
A SIGSEGV signal or segmentation error occurs when a process attempts to use a memory address that was not assigned to it by the MMU.
Unfortunately, this is a known problem when using help on Python. It currently has to import modules to inspect their docstrings and this may result in crashes if the modules execute code upon import and call third-party libraries that expect a certain execution context or that may just be buggy. Here's an open Ubuntu issue about this specific case. There are a number of open issues in the Python issue tracker about similar crashes due to help importing.
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