Originally posted by: Eumpfenbach

I have searched numerous python path websites on google and am stuck. I run Ubuntu 10.04 and ILOG 12.2.

I start up the prompt:

ed@ed-laptop:~$ python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:57:41)
http://GCC 4.4.3 on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path
So the python path is set right, right?

So if I open a new prompt and type the following, I get an error. I have mipex1.py in the ILOG path above (and /usr/lib/python2.6 just to be safe).

ed@ed-laptop:~$ python mipex1.py
python: can't open file 'mipex1.py': Errno 2 No such file or directory
ed@ed-laptop:~$

If I try and start the file this way, I also get an error:

ed@ed-laptop:~$ python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:57:41)
http://GCC 4.4.3 on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> mipex1.py
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'mipex1' is not defined
Any help would be appreciated. I'm just starting with python and am not sure what I am doing wrong.

Ed
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Originally posted by: Eumpfenbach

I was a bit incomplete in my above post. When I type in the sys.path command it shows the python directory with the cplex folder in there. I left out the terminal output for that, but I've checked 10 times and it is there.
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Originally posted by: Eumpfenbach

here's the info I left out.

ed@ed-laptop:~$ python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:57:41)
http://GCC 4.4.3 on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path
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Originally posted by: Eumpfenbach

'', '/home/ed/ILOG/CPLEX_Studio_AcademicResearch122/cplex/python/x86-64_sles10_4.1', '/usr/lib/python2.6', '/usr/lib/python2.6/plat-linux2', '/usr/lib/python2.6/lib-tk', '/usr/lib/python2.6/lib-old', '/usr/lib/python2.6/lib-dynload', '/usr/lib/python2.6/dist-packages', '/usr/lib/python2.6/dist-packages/PIL', '/usr/lib/python2.6/dist-packages/gst-0.10', '/usr/lib/pymodules/python2.6', '/usr/lib/python2.6/dist-packages/gtk-2.0', '/usr/lib/pymodules/python2.6/gtk-2.0', '/usr/local/lib/python2.6/dist-packages'
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Originally posted by: SystemAdmin

I'm not sure (I've used Python very little), but I think the Python path is checked only when Python is importing a module. I'm not sure the path is searched for scripts specified in the command line. Try giving the absolute path to the script in the command line.

Paul

Mathematicians are like Frenchmen: whenever you say something to them, they translate it into their own language, and at once it is something entirely different. (Goethe)
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Originally posted by: Eumpfenbach

Thanks for the answer.

It definitely works if I type python /path.../myscript.py

However, according to several websites (for example, http://www.ehow.com/how_8282375_run-python-scripts-linux.html) you should be able to just type python myscript.py

Obviously I could run the script by just typing the path, but this really isn't my core problem. I have written matlab code to solve a cplex problem, but want to be able to use the callbacks. I am trying to use a file off the matlab file exchange called pymex that integrates python into matlab (this way I can utilize all the scripts I have written to create my matrices and vectors, pass them to python, control the cplex search, then bring them back into matlab).

I was thinking that since I can't call python the way mentioned in the ehow page above, I thought maybe it was caused by the same problem. Not sure. Something isn't right...
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