Red Hat Bugzilla – Bug 603073
python >>> help() >>> modules command traceback when used without DISPLAY
Last modified: 2016-05-31 21:47:07 EDT
Description of problem:
When testing 526313 over ssh on shared box, I've noticed that 'modules' command in python interactive help probably executes more stuff than necessary, resulting in traceback in the case when no display is available (which is the case of ssh-ing to the box). I also tried to ssh there with -X to see what happens, which results in some gtk (I think) output one would not expect in this context.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. ssh <rhel6 box> # I think it should be reproducible even in RHEL6 box in runlevel 3, but I have no such box
2. $ python
3. >>> help()
4. >>> modules abcd
help> modules abcd
Here is a list of matching modules. Enter any module name to get more help.
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.6/site.py", line 429, in __call__
return pydoc.help(*args, **kwds)
File "/usr/lib/python2.6/pydoc.py", line 1720, in __call__
File "/usr/lib/python2.6/pydoc.py", line 1738, in interact
File "/usr/lib/python2.6/pydoc.py", line 1757, in help
File "/usr/lib/python2.6/pydoc.py", line 1862, in listmodules
File "/usr/lib/python2.6/pydoc.py", line 1962, in apropos
File "/usr/lib/python2.6/pydoc.py", line 1927, in run
for importer, modname, ispkg in pkgutil.walk_packages(onerror=onerror):
File "/usr/lib/python2.6/pkgutil.py", line 110, in walk_packages
File "/usr/lib/python2.6/site-packages/invest/__init__.py", line 6, in <module>
import gtk, gtk.gdk, gconf, gobject
File "/usr/lib/python2.6/site-packages/gtk-2.0/gtk/__init__.py", line 64, in <module>
File "/usr/lib/python2.6/site-packages/gtk-2.0/gtk/__init__.py", line 52, in _init
RuntimeError: could not open display
When you *have* a display, you can get something like this, which also does not seem really right:
** (.:27993): WARNING **: Trying to register gtype 'WnckWindowState' as flags when in fact it is of type 'GEnum'
** (.:27993): WARNING **: Trying to register gtype 'WnckWindowActions' as flags when in fact it is of type 'GEnum'
** (.:27993): WARNING **: Trying to register gtype 'WnckWindowMoveResizeMask' as flags when in fact it is of type 'GEnum'
2010-06-11 09:24:03.982258: ERROR: Could not load the stocks from /root/.gnome2/invest-applet/stocks.pickle: [Errno 2] No such file or directory: '/root/.gnome2/invest-applet/stocks.pickle'
It seems this is more likely an issue of some misbehaving python package, but I've reported it to python because I'm not sure what the help() >>> modules actually executes.
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Sorry for not getting to this earlier.
Looks like bug 461419, which I've fixed in Fedora in python-2.6.5-12.fc14
Technical note added. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.
The "pydoc -k" command performs a keyword search of the synopses in all installed Python modules. This command failed on modules that did not import, resulting in a traceback. "pydoc -k" now ignores modules that had import exceptions, allowing searches on the remaining modules.
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.