Running 

sage debug.py

does not resolve my issue.

I was looking around in the ask.sagemath.org site and found this post : 
http://ask.sagemath.org/question/10173/run-python-file-from-command-line-in-sage/.
 
Someone fixed similar issues adding this line to the beginning of the 
Python script:

from sage.all import *

So I tried and it fixed my problem !

I'm afraid I may be importing *way* too many things in my namespace but for 
now, it'll do the job.

Anybody has hints on why this is required ?

Does that has the effect of activating sage's virtual environment setup 
(kind of) ?

Kind regards,

Eric


Le mercredi 28 janvier 2015 12:50:09 UTC-5, vdelecroix a écrit :
>
> Hello, 
>
> If you want to run *pure* python you should use 
>
>     sage -python my_file.py 
>
> By pure Python I mean which does not need any of the Sage stuff like 
> ZZ. If you want to run your file just do 
>
>     sage my_file.py 
>
> Vincent 
>
> 2015-01-28 18:43 UTC+01:00, Eric Parent <[email protected] <javascript:>>: 
>
> > Hi, 
> > 
> > I'm running Debian Wheezy x86_64. 
> > I downloaded the sources (sage-6.4) which I compiled and run for a few 
> > months already. 
> > 
> > I used to run Python scripts from Sage like this: 
> > 
> > $ sage -python <script.py> 
> > 
> > The script was actually exported from a notebook I was running. I just 
> felt 
> > 
> > more comfortable running a script than going through the Notebook 
> > interface... 
> > 
> > And it worked just fine until this weekend. I guess my problems are due 
> to 
> > an update of my OS I did this weekend. I haven't kept note of the 
> various 
> > packages I updated. I think GCC was in the lot. 
> > 
> > Now, I can run the Notebook without any problem but I get this error 
> when I 
> > 
> > run my script : 
> > 
> > $ sage -python debug.py 
> > Traceback (most recent call last): 
> >   File "debug.py", line 3, in <module> 
> >     from sage.numerical.mip import MixedIntegerLinearProgram 
> >   File 
> > 
> "/home/eric/apps/sage-6.4/local/lib/python2.7/site-packages/sage/numerical/__init__.py"
>  
>
> > , line 1, in <module> 
> >     import all 
> >   File 
> > 
> "/home/eric/apps/sage-6.4/local/lib/python2.7/site-packages/sage/numerical/all.py"
>  
>
> > , line 1, in <module> 
> >     from optimize import (find_fit, 
> >   File 
> > 
> "/home/eric/apps/sage-6.4/local/lib/python2.7/site-packages/sage/numerical/optimize.py"
>  
>
> > , line 14, in <module> 
> >     from sage.modules.free_module_element import vector 
> >   File "sage/rings/integer.pxd", line 9, in init 
> > sage.modules.free_module_element 
> > (build/cythonized/sage/modules/free_module_element.c:36437) 
> >   File "sage/rings/rational.pxd", line 10, in init sage.rings.integer 
> > (build 
> > /cythonized/sage/rings/integer.c:41630) 
> >   File "sage/rings/rational.pyx", line 56, in init sage.rings.rational ( 
> > build/cythonized/sage/rings/rational.c:30843) 
> >   File 
> > 
> "/home/eric/apps/sage-6.4/local/lib/python2.7/site-packages/sage/rings/rational_field.py"
>  
>
> > , line 55, in <module> 
> >     import infinity 
> >   File 
> > 
> "/home/eric/apps/sage-6.4/local/lib/python2.7/site-packages/sage/rings/infinity.py"
>  
>
> > , line 213, in <module> 
> >     from sage.rings.integer_ring import ZZ 
> >   File "sage/rings/integer_ring.pyx", line 67, in init 
> > sage.rings.integer_ring 
> > (build/cythonized/sage/rings/integer_ring.c:11566) 
> >   File 
> > 
> "/home/eric/apps/sage-6.4/local/lib/python2.7/site-packages/sage/structure/factorization.py"
>  
>
> > , line 188, in <module> 
> >     from sage.misc.all import prod 
> >   File 
> > 
> "/home/eric/apps/sage-6.4/local/lib/python2.7/site-packages/sage/misc/all.py" 
>
> > , line 89, in <module> 
> >     from functional import (additive_order, 
> >   File 
> > 
> "/home/eric/apps/sage-6.4/local/lib/python2.7/site-packages/sage/misc/functional.py"
>  
>
> > , line 36, in <module> 
> >     from sage.rings.complex_double import CDF 
> >   File "sage/rings/real_double.pxd", line 8, in init 
> > sage.rings.complex_double 
> > (build/cythonized/sage/rings/complex_double.c:20095) 
> >   File "sage/rings/real_double.pyx", line 56, in init 
> sage.rings.real_double 
> > 
> > (build/cythonized/sage/rings/real_double.c:22825) 
> > ImportError: cannot import name ZZ 
> > 
> > The problem concerns a simple import that now does not work. I just 
> putted 
> > these two lines in my "debug.py" script: 
> > 
> > from sage.numerical.mip import MixedIntegerLinearProgram 
> > print MixedIntegerLinearProgram.__doc__ 
> > 
> > I re-compiled my sources but the problem remains. Notebook still works 
> just 
> > 
> > fine. 
> > 
> > Any thoughts ? 
> > To be honest, I don't know the ZZ module. 
> > 
> > Any help would be appreciated. 
> > 
> > Kind regards, 
> > 
> > Eric 
> > 
> > 
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>

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