Crash when importing swig module

[spyder-bot]

From pieter.e...@gmail.com on 2012-10-06T06:02:36Z

spyderlib crashes when importing a module using

from testlib import *

The crash does not occur when using:

import testlib

The crash only occurs when running spyderlib, from the command line code runs fine. A 'hello world' example is attached.

The problem is due to a special variable cvar that is generated by SWIG for global variables. The crash also occurs when using

from testlib import cvar

System: Ubuntu 12.04, SWIG Version 2.0.4, Python 2.7.3, spyderlib: various versions, latest tested: Spyder 2.1.9

Attachment: bug.py test.h test.cpp test.i

Original issue: http://code.google.com/p/spyderlib/issues/detail?id=1168

[spyder-bot]

From ccordoba12 on 2012-10-08T10:09:24Z

Are you seeing a traceback when Spyder crashes?

Summary: Crash when importing swig module
Labels: -Priority-Medium Priority-High Cat-SpyderGUI

[spyder-bot]

From pieter.e...@gmail.com on 2012-10-08T10:53:52Z

There is no traceback.

What happens is that after the "from xxx import *" command spyder freezes. (the entire user interface). By killing the python console I am working in (using another terminal) I can make spyder respond again and continue working by creating a new console. The problem occurs both with the python and ipython console.

[spyder-bot]

From pieter.e...@gmail.com on 2012-10-08T10:59:13Z

As an addition to the previous comment: after killing the console, I get the following message from the internal console:

Python 2.7.3 (default, Aug 1 2012, 05:14:39)
[GCC 4.6.3] on linux2
Type "copyright", "credits" or "license" for more information.

Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/spyderlib/widgets/externalshell/namespacebrowser.py", line 315, in refresh_table
communicate(sock, "refresh()")
File "/usr/lib/python2.7/dist-packages/spyderlib/utils/bsdsocket.py", line 67, in communicate
return read_packet(sock)
File "/usr/lib/python2.7/dist-packages/spyderlib/utils/bsdsocket.py", line 36, in read_packet
dlen, = struct.unpack("l", datalen)
struct.error: unpack requires a string argument of length 8

[spyder-bot]

From pieter.e...@gmail.com on 2012-10-08T11:00:44Z

And from the console itself:

Python 2.7.3 (default, Aug 1 2012, 05:14:39)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.

Imported NumPy 1.6.1, SciPy 0.9.0, Matplotlib 1.1.1rc
Type "scientific" for more details.

from oalib import *
cvar
Swig global variables (NO_VALUE, NARRAYS_MAX)

Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/lib/python2.7/threading.py", line 551, in __bootstrap_inner
self.run()
File "/usr/lib/python2.7/dist-packages/spyderlib/widgets/externalshell/monitor.py", line 564, in run
self.update_remote_view()
File "/usr/lib/python2.7/dist-packages/spyderlib/widgets/externalshell/monitor.py", line 445, in update_remote_view
remote_view = make_remote_view(ns, settings, more_excluded_names)
File "/usr/lib/python2.7/dist-packages/spyderlib/widgets/externalshell/monitor.py", line 65, in make_remote_view
more_excluded_names=more_excluded_names)
File "/usr/lib/python2.7/dist-packages/spyderlib/widgets/externalshell/monitor.py", line 54, in get_remote_data
excluded_names=excluded_names)
File "/usr/lib/python2.7/dist-packages/spyderlib/widgets/dicteditorutils.py", line 236, in globalsfilter
filters=filters))
File "/usr/lib/python2.7/dist-packages/spyderlib/widgets/dicteditorutils.py", line 201, in is_supported
if not is_editable_type(value):
File "/usr/lib/python2.7/dist-packages/spyderlib/widgets/dicteditorutils.py", line 114, in is_editable_type
return get_color_name(value) not in (UNSUPPORTED_COLOR, CUSTOM_TYPE_COLOR)
File "/usr/lib/python2.7/dist-packages/spyderlib/widgets/dicteditorutils.py", line 103, in get_color_name
np_dtype = get_numpy_dtype(value)
File "/usr/lib/python2.7/dist-packages/spyderlib/widgets/dicteditorutils.py", line 40, in get_numpy_dtype
return obj.dtype.type
NameError: Unknown C global variable

[spyder-bot]

From ccordoba12 on 2012-10-10T09:14:57Z

Crucial info, thanks a lot for taking the time to dig into this issue and send us your findings. It seems to be a problem with our monitor, i.e. a socket server used to obtain code completions and other helpful things from the external python process.

Your crash could be related to issue #1106 (which we fixed just a couple of weeks ago). In the meantime, you could try to deactivate the monitor to see if that prevents the crash. To do it please go to:

Tools > Preferences > Console > Introspection

And uncheck the option "Enable monitor".

Please keep us posted to know if this fixes the problem.

[spyder-bot]

From pieter.e...@gmail.com on 2012-10-11T07:46:48Z

Changing the option in Tools->Prefereces->Console->Introspection did not help.

However, on a different machine I checked with the latest branch and the problem did not occur there.

[spyder-bot]

From pierre.raybaut on 2012-11-04T13:14:08Z

Could you please try to upgrade from v2.1.9 to latest stable v2.1.11?

I suspect that this revision 6c7945f97adb may have fixed this bug.

[spyder-bot]

From pieter.e...@gmail.com on 2012-11-05T07:06:49Z

On the latest stable version (2.1.11) the problem does not occur any more, I think the bug can be closed.

[spyder-bot]

From pierre.raybaut on 2012-11-05T07:16:00Z

Status: Done