labyrinth crashes at startup "ImportError: No module named Numeric" : missing python-numeric dependency

[Fabián Rodríguez]

Binary package hint: labyrinth

After installing the package and trying to run it for the first time, it silently crashes.

Launching from command line provides the following output:

magicfab@edgar:~$ labyrinth
Traceback (most recent call last):
  File "/usr/bin/labyrinth", line 45, in <module>
    import utils
  File "/usr/lib/python2.5/site-packages/labyrinth/utils.py", line 29, in <module>
    from Numeric import *
ImportError: No module named Numeric
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/apport_python_hook.py", line 85, in apport_excepthook
    os.O_WRONLY|os.O_CREAT|os.O_EXCL), 'w')
OSError: [Errno 17] File exists: '/var/crash/_usr_bin_labyrinth.1000.crash'

Original exception was:
Traceback (most recent call last):
  File "/usr/bin/labyrinth", line 45, in <module>
    import utils
  File "/usr/lib/python2.5/site-packages/labyrinth/utils.py", line 29, in <module>
    from Numeric import *
ImportError: No module named Numeric

Once the python-numeric package is installed, the application can be launched normally.

It seems python-numeric should be a dependency, which is not the case.

Can python-numeric be added as a dependency for the labyrinth package ?

[Fabián Rodríguez (magicfab)]

Forgot to mention this happens in Jaunty alpha 3 (updated as of Feb 9 2009).

[msieloff (m-sieloff-web)]

The same in Jaunty alpha 6

[David Coeurjolly (dcoeurjo)]

Bug confirmed in the R.C.

[David Prieto (frandavid100-gmail)]

Happens in jaunty final, too.

[Arnaud Soyez (weboide)]

Confirmed in Jaunty.

$ apt-cache policy labyrinth
labyrinth:
  Installé : 0.4.0-0ubuntu1
  Candidat : 0.4.0-0ubuntu1
 Table de version :
 *** 0.4.0-0ubuntu1 0
        500 http://mirrors.ccs.neu.edu jaunty/universe Packages
        100 /var/lib/dpkg/status

[Daniel Queirolo (danf-1979)]

this may or not be related, but I was having problems importing the "util" module. Checking the sources of /usr/bin/labyrinth revealed a error in sys.path. At least in jaunty we're using python2.6, so changing line 40 to:

   sys.path.insert(0, abspath("/usr/lib/python2.6/dist-packages/labyrinth"))

and installing python-numeric should fix all problems. Its running here.

[Tom (k0nsillyra)]

I applied the fix from comment #6 here, which got me past line 40. But I now get an error at line 45 and labyrinth won't launch. I am using Jaunty 9.04, with python2.6 and Labyrinth 0.4.0-0Ubuntu1 (jaunty)

~$ /usr/bin/labyrinth
Traceback (most recent call last):
  File "/usr/bin/labyrinth", line 45, in <module>
    import utils
ImportError: No module named utils

[Jay S. (jurgen-schellaert)]

OK, it would appear that /usr/bin/labyrinth uses "site-packages" in its path definition rather than "dist-packages"; in other words, correcting only the version number (from 2.5 to 2.6) is not enough. Make sure the line looks exactly as shown in comment 6.
Once this error was corrected, I had no more problems except it now could not locate Numeric - but then that was easily solved by installing python-numeric.

[Frederic Muller (fred-beijinglug)]

Problem still in beta, installing python-numeric fixes it.

[andypiper (andypiperuk)]

Same problem in Karmic pre-release on UNR with Labyrinth installed from Ubuntu Software Centre. apt-get install python-numeric in a terminal window enables Labyrinth to be started.

[Roman Khatko (nosorog)]

Same problem on Karmic (i386).
Apply fix from post #6 and install python-numeric package, and it works well.

[m2acis (m2acis)]

Ubuntu 9.10, same problem fix in #10 helps. Seems like this package should have dependency on phython-numeric.

[Paul-Sebastian Manole (brokenthorn)]

When I installed python-numeric, it also removed nspluginwrapper and I don't know why. I didn't bother with it because I don't like using the deb for running 64bit flashplayer, I just use the beta and install it manually because the wrapper tends to crash. Labyrinth works by the way. This needs repackaging.

[Ezra Reeves (ezrareeves)]

This seems to have something to do with LP: #350016.

pycentral seems to move the files to the correct directory but the makefile sets incorrect paths in the source files.

[Frederic Muller (fred-beijinglug)]

so we're in December and anyone installing 9.10 stable gets to go through #6 and #8. How do we get a normal maintenance fix to be released so newcomers can it working out of the box?