Cannot import sage.libs.lcalc.lcalc_Lfunction

[jpflori]

Cygchecking the package shows that it looks for an inexistent libLfunction.so. Indeed, this file is moved to libLfunction.dll on Cygwin to let Sage build. But at runtime, it is the original .so file which is looked for (surely some DT_SONAME equivalent). Letting libLfunction.so in place and symlinking it from libLfunction.dll seems more functional.

A better solution would to tell lcalc to build directly a .dll file on Cygwin (and .dylib on Mac OS X, etc.). Updated spkg doing so at ​http://perso.telecom-paristech.fr/~flori/sage/lcalc-1.23.p11.spkg or ​http://www.infres.enst.fr/~flori/sage/lcalc-1.23.p11.spkg

Apply trac_13351.patch​

[jpflori]

Update lcalc spkg, modifying lot of the Makefile (that we already modify and which is not that nice) available at ​http://perso.telecom-paristech.fr/~flori/sage/lcalc-1.23.p11.spkg

This will also need a Sage library patch.

[jpflori]

Spkg diff, for review only.

[kcrisman]

Does this fix #9165?

[jpflori]

No idea :) give it a try.

[jpflori]

I think its the last ticket needed to correctly build Sage and get a working version except for a few doctests. It would be great to have it for 5.8, nobody wants to have a look?

[kcrisman]

I'm sorry, Jean-Pierre - I agree, but I simply have had no time at work to deal with my XP box (esp. since the 32-bit issue apparently is preventing proper rebasing, as discussed somewhere). I hope to try again over spring break in a couple weeks.

[dimpase]

Replying to jpflori:

I think its the last ticket needed to correctly build Sage and get a working version except for a few doctests. It would be great to have it for 5.8, nobody wants to have a look?

I'm away at a conference, and don't have access to a WIndows machine, until Sunday. And then I'll have jetlag :-) So it has to wait for few days, sorry.

[jpflori]

No hurry, it's just that its been rottijg around for some monthes, so Id like to get it ressurected :)

[dimpase]

I still get import problems:

$ ./sage -t -long devel/sage/sage/libs/lcalc/
sage -t -long "devel/sage/sage/libs/lcalc/lcalc_Lfunction.pyx"
**********************************************************************
File "/usr/local/src/sage/sage-5.7.beta2/devel/sage/sage/libs/lcalc/lcalc_Lfunction.pyx", l 55:
    sage: from sage.libs.lcalc.lcalc_Lfunction import *
Exception raised:
    Traceback (most recent call last):
      File "/usr/local/src/sage/sage-5.7.beta2/local/bin/ncadoctest.py", line 1231, in run__test
        self.run_one_example(test, example, filename, compileflags)
      File "/usr/local/src/sage/sage-5.7.beta2/local/bin/sagedoctest.py", line 38, in run_oexample
        OrigDocTestRunner.run_one_example(self, test, example, filename, compileflags)
      File "/usr/local/src/sage/sage-5.7.beta2/local/bin/ncadoctest.py", line 1172, in run__example
        compileflags, 1) in test.globs
      File "<doctest __main__.example_1[2]>", line 1, in <module>
        from sage.libs.lcalc.lcalc_Lfunction import *###line 55:
    sage: from sage.libs.lcalc.lcalc_Lfunction import *
    ImportError: No such file or directory

etc etc etc

indeed:

sage: import sage.libs.lcalc.lcalc_Lfunction
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-1-a629fe51f139> in <module>()
----> 1 import sage.libs.lcalc.lcalc_Lfunction

ImportError: No such file or directory
sage:

note that

sage: import sage.libs.lcalc

works.

[jpflori]

Replying to dimpase:

I still get import problems:

$ ./sage -t -long devel/sage/sage/libs/lcalc/
sage -t -long "devel/sage/sage/libs/lcalc/lcalc_Lfunction.pyx"
**********************************************************************
File "/usr/local/src/sage/sage-5.7.beta2/devel/sage/sage/libs/lcalc/lcalc_Lfunction.pyx", l 55:
    sage: from sage.libs.lcalc.lcalc_Lfunction import *
Exception raised:
    Traceback (most recent call last):
      File "/usr/local/src/sage/sage-5.7.beta2/local/bin/ncadoctest.py", line 1231, in run__test
        self.run_one_example(test, example, filename, compileflags)
      File "/usr/local/src/sage/sage-5.7.beta2/local/bin/sagedoctest.py", line 38, in run_oexample
        OrigDocTestRunner.run_one_example(self, test, example, filename, compileflags)
      File "/usr/local/src/sage/sage-5.7.beta2/local/bin/ncadoctest.py", line 1172, in run__example
        compileflags, 1) in test.globs
      File "<doctest __main__.example_1[2]>", line 1, in <module>
        from sage.libs.lcalc.lcalc_Lfunction import *###line 55:
    sage: from sage.libs.lcalc.lcalc_Lfunction import *
    ImportError: No such file or directory

etc etc etc

indeed:

sage: import sage.libs.lcalc.lcalc_Lfunction
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-1-a629fe51f139> in <module>()
----> 1 import sage.libs.lcalc.lcalc_Lfunction

ImportError: No such file or directory
sage:

Did you install the patch to the Sage library and rebuilt it as well?

note that

sage: import sage.libs.lcalc

works.

That's expected, this file is not touched and does not depend on the spkg.

[dimpase]

yes, I certainly applied trac_13351.patch and ran sage -b. (on 5.7.beta2, but I guess it should not matter).

[dimpase]

Replying to dimpase:

yes, I certainly applied trac_13351.patch and ran sage -b. (on 5.7.beta2, but I guess it should not matter).

what happened is that the Python extension didn't get rebuilt, as the patch didn't touch the corresponding pyx file! So I touched this file, and now everything works. Positive review.

[kcrisman]

It works on XP too!