[Octave-bug-tracker] [bug #65900] [octave forge] (symbolic) Failing unit test in @sym/bernoulli.m

[Rafael Laboissière]

URL:
  <https://savannah.gnu.org/bugs/?65900>

                 Summary: [octave forge] (symbolic) Failing unit test in
@sym/bernoulli.m
                   Group: GNU Octave
               Submitter: rlaboiss
               Submitted: Thu 20 Jun 2024 08:57:47 AM UTC
                Category: Octave Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error or Warning
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: other
         Discussion Lock: Any
        Operating System: GNU/Linux
           Fixed Release: None
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Thu 20 Jun 2024 08:57:47 AM UTC By: Rafael Laboissière <rlaboiss>
With Octave 9.2.0, symbolic 3.2.1, Python 3.11.9, and SymPy 1.12.1, one of the
unit tests in vpa.m fails:


***** test
 % we use B_1 = 1/2
 if (pycall_sympy__ ('return Version(spver) >= Version("1.12.dev")'))
   assert (isequal (bernoulli (sym(1)), sym(1)/2))
 end
!!!!! test failed
Python exception: TypeError: '>=' not supported between instances of 'int' and
'str'
    occurred at line 1 of the Python code block:
    return Version(spver) >= Version("1.12.dev")


In my Debian system, with package python3-packaging installed, the problem
disappears.

This may be caused by this piece of code in inst/private/python_header.py:


    try:
        from packaging.version import Version
    except ImportError:
        try:
            # available on SymPy >= 1.9
            from sympy.external.importtools import version_tuple as Version
        except ImportError:
            # will fail on Python 3.12: drop this soon in favour of above
            from distutils.version import LooseVersion
            def Version(v):
                return LooseVersion(v.replace('.dev', ''))









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