I recently upgraded from 5.9 to 5.12.
My init.sage file loads/attaches a .sage file that I often use. In 5.9, that file was still attached when I started up a worksheet in the notebook. In 5.12, it is attached in the terminal, but when I then start open a worksheet in the notebook, it seems to be no longer attached since none of my functions are known any more and give a NameError when tried.
What can I do to fix this?
Hello! The problem is in file
$SAGE_ROOT/spkg/bin/sage-env
>>import os
>>os.environ['SAGE_STARTUP_FILE']
/home/andrei/.sage//init.sage
First, what OS are you using? Second, what is the bug here? (Having multiple slashes in a row doesn't actually affect the path: `/home/andrei/.sage/init.sage` and `/home/andrei/.sage//init.sage` point to the same file.) Third, making your change doesn't seem to have any effect: the file will still be loaded from the command-line, and not from the notebook.
Asked: 2013-10-14 22:05:37 +0200
Seen: 565 times
Last updated: Oct 19 '13
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What is the exact syntax you used? This has recently changed (though I thought it was before 5.9) and conceivably affected things.
It looks to me as though this broke between Sage 5.10 (where it works) and 5.11 (where it doesn't). I think the problem was introduced in http://trac.sagemath.org/ticket/14523.
This bug has now been reported at http://trac.sagemath.org/ticket/15308.
I have a problem that may be related. I use load_attach_path followed by attach. I get the error "NameError: name 'var' is not defined" from within the attached file. I am using Ubuntu 12.04 x64 and using the Sage notebook. This worked in 5.10 and stopped working in 5.11.
I've also reported this upstream at https://github.com/sagemath/sagenb/issues/251
There is a pull request to fix this (though not to fix attach) at https://github.com/sagemath/sagenb/pu...
Also, @BobB, it would be really interesting to hear how you are able to use
attachproperly in the notebook if you useload_attach_path. Maybe that is how attach got broken in the first place in the notebook, improper use of a path. (There are really two "attach" lists there - the one for Sage and the one for the data directory, unfortunately.)As far as "properly" is concerned, I'm not sure I ever did use it properly. I just wanted to reuse sage code and the load_attach_path/attach seemed to work just fine. I never tried or used the capability of sage to keep track of changes to attached files and re-execute, as it seems it should be able to do. Using load_attach_path/load works (tried at your suggestion, thank you) so I'm fine. I was using attach in the first place because I did not know better.
@BobB : what I meant is that knowing the exact sequence of commands you used could be vital to fixing the problem! If this other solution does allow you to attach a file, probably examining the difference in code will allow us to diagnose (and fix) the other problem. Thank you very much if you have it! If I am misinterpreting and now
attachcontinues to not work then this is just another manifestation of https://github.com/sagemath/sagenb/is... . Thanks!@BobB - is the reason you used
load_attach_pathbecause of https://github.com/sagemath/sagenb/is... ? Thanks!I'm really sorry about the large delays in my replies. First, I used load_attach_path because I thought it was necessary for attach to know where to find files. I did not start using it because of the cited issue. So, I have a cell and it contains:
load_attach_path('/home/sage/Documents/SageProjects/OrthogonalCoordinates') attach('CartesianCoord.sage')
CartesianCoord.sage is in the directory named in the load_attach_path, and it contains:
var('q_1,q_2,q_3,x_1,x_2,x_3')
and evaluation results in an error message I will post in another comment, because there isn't enough space left in this comment.
Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_5.py", line 10, in <module> exec compile(u'open("___code___.py","w").write("# -- coding: utf-8 --\n" + _support_.preparse_worksheet_cell(base64.b64decode("bG9hZF9hdHRhY2hfcGF0aCgnL2hvbWUvc2FnZS9Eb2N1bWVudHMvU2FnZVByb2plY3RzL09ydGhvZ29uYWxDb29yZGluYXRlcycpCmF0dGFjaCgnQ2FydGVzaWFuQ29vcmQuc2FnZScp"),globals())+"\n"); execfile(os.path.abspath("___code___.py")) File "", line 1, in <module>
File "/tmp/tmpNZTIvb/___code___.py", line 3, in <module> exec compile(u"attach('CartesianCoord.sage')" + '\n', '', 'single') File "", line 1, in <module>
File "sage/misc/lazy_import.pyx", line 358, in sage.misc.lazy_import.LazyImport.__call__ (build/cythonized/sage/misc/lazy_import.c:3230) File "/home/sage/sage-6.4.1/local/lib/python2.7/site-packages/sage/misc/attached_files.py", line 344, in attach load(filename, globals(), attach=True) File "/home/sage/sage-6.4.1/local/lib/python2.7/site-packages/sage/misc/preparser.py", line 1792, in load exec(code, globals) File "/home/sage/.sage/temp/ubuntu/3303/CartesianCoord.sageaIwXL1.py", line 5, in <module> var ...(more)