Dear Maintainer,

It seems that this version of the package (or other on the libsingular4 family) renders sagemath completelu unusable. In other systems, with the an older version of libsingular4* (4.3.1, if my memory isn't cheating me), sage runs perfectly.

Below is an output of sagemath running from the prompt:

~$ sage
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 9.5, Release Date: 2022-01-30                     │
│ Using Python 3.11.7. Type "help()" for help.                       │
└────────────────────────────────────────────────────────────────────┘
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3.11/pathlib.py", line 1251, in is_dir
    return S_ISDIR(self.stat().st_mode)
                   ^^^^^^^^^

AttributeError: 'str' object has no attribute 'stat'
Original exception was:
Traceback (most recent call last):
  File "/usr/bin/sage-ipython", line 15, in <module>
    app.initialize()
  File "/usr/lib/python3/dist-packages/traitlets/config/application.py", line 110, in inner
    return method(app, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/IPython/terminal/ipapp.py", line 278, in initialize
    self.init_shell()
  File "/usr/lib/python3/dist-packages/sage/repl/interpreter.py", line 789, in init_shell
    self.shell.extension_manager.load_extension(SAGE_EXTENSION)
  File "/usr/lib/python3/dist-packages/IPython/core/extensions.py", line 76, in load_extension
    return self._load_extension(module_str)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/IPython/core/extensions.py", line 93, in _load_extension
    if self._call_load_ipython_extension(mod):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/IPython/core/extensions.py", line 145, in _call_load_ipython_extension
    mod.load_ipython_extension(self.shell)
  File "/usr/lib/python3/dist-packages/sage/repl/__init__.py", line 5, in load_ipython_extension
    sage.repl.ipython_extension.load_ipython_extension(*args)
  File "/usr/lib/python3/dist-packages/sage/repl/ipython_extension.py", line 617, in wrapper
    result = func(*args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/sage/repl/ipython_extension.py", line 630, in load_ipython_extension
    SageCustomizations(shell=ip)
  File "/usr/lib/python3/dist-packages/sage/repl/ipython_extension.py", line 434, in __init__
    import sage.all # until sage's import hell is fixed
    ^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/sage/all.py", line 169, in <module>
    from sage.rings.all      import *
  File "/usr/lib/python3/dist-packages/sage/rings/all.py", line 87, in <module>
    from .qqbar import (AlgebraicRealField, AA,
  File "/usr/lib/python3/dist-packages/sage/rings/qqbar.py", line 2810, in <module>
    QQxy = QQ['x', 'y']
           ~~^^^^^^^^^^
  File "sage/structure/parent.pyx", line 1276, in sage.structure.parent.Parent.__getitem__ (build/cythonized/sage/structure/parent.c:11543)
  File "/usr/lib/python3/dist-packages/sage/categories/rings.py", line 1177, in __getitem__
    return PolynomialRing(self, elts)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/sage/rings/polynomial/polynomial_ring_constructor.py", line 647, in PolynomialRing
    return _multi_variate(base_ring, names, **kwds)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/sage/rings/polynomial/polynomial_ring_constructor.py", line 775, in _multi_variate
    from sage.rings.polynomial.multi_polynomial_libsingular import MPolynomialRing_libsingular
ImportError: libsingular-Singular-4.3.1.so: cannot open shared object file: No such file or directory

It seems that sage calls previous version (4.3.1) of libsingular. I reported this bug before to sagemath package, but got no answer. I'let this filed here and report again on sage.

I may provide any further information needed to fix this.

Best, Alexandre

Control: reassign -1 sagemath 9.5-6
Control: severity 1052051 grave
Control: merge -1 1052051

Thanks for the report!  This is a duplicate of #1052051 and I would say is definitely a Sage bug and not a Singular one, so I'm reassigning this and merging them.  I agree with the "grave" severity, though.

Doug

Thanks, Doug!

Hope this is fixed soon. My first guess is to call the installed version
of singular and then see what happens. Sage team: if I can help in some
way, just tell me.

Best, Alexandre

Em 19/02/2024 08:50, Torrance, Douglas escreveu: