It seems to me you would certainly want the interface to work in a manner 
that is consistent with the other interfaces.

Best,
Travis


On Sunday, March 15, 2026 at 1:07:37 AM UTC+9 [email protected] wrote:

>
> so i have install the package 
> `pip install mathics3` and i get this huge error log
> would this be the objective of the project 'Improve integration with 
> Mathics'
> or this an isolated error for machine because i can't really i identify 
> the error
> i thought it was a mismatch in npmath package but that didn't solve it 
> and there are a problem when calling the .sage() function to convert the 
> object to a sageobj
> (sage-dev) >>>    sage [develop] pip list | grep -i mathics
> Mathics_Scanner               2.0.0
> Mathics3                      9.0.0
> (sage-dev) >>>    sage [develop] python --version
> Python 3.12.12
> (sage-dev) >>>    sage [develop] which python
> /home/rashad/.conda/envs/sage-dev/bin/python
> (sage-dev) >>>    sage [develop]
> (sage-dev) >>>    sage [develop] ./sage
> ┌────────────────────────────────────────────────────────────────────┐
> │ SageMath version 10.9.beta7, Release Date: 2026-02-25              │
> │ Using Python 3.12.12. Type "help()" for help.                      │
> └────────────────────────────────────────────────────────────────────┘
> ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
> ┃ Warning: this is a prerelease version, and it may be unstable.     ┃
> ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
> sage: from sage.interfaces.mathics import mathics
> sage: mobj = mathics(x^2 - 1); mobj
> ---------------------------------------------------------------------------
> AttributeError                            Traceback (most recent call last)
> File ~/sage/sage/src/sage/interfaces/interface.py:329, in 
> Interface._coerce_from_special_method(self, x)
>     328 try:
> --> 329     return (x.__getattribute__(s))(self)
>     330 except AttributeError:
>
> File sage/structure/sage_object.pyx:979, in 
> sage.structure.sage_object.SageObject._mathics_()
>
> File sage/symbolic/expression.pyx:1123, in 
> sage.symbolic.expression.Expression._interface_()
>
> File sage/structure/sage_object.pyx:723, in 
> sage.structure.sage_object.SageObject._interface_()
>
> File ~/sage/sage/src/sage/interfaces/interface.py:294, in 
> Interface.__call__(self, x, name)
>     293 if isinstance(x, str):
> --> 294     return cls(self, x, name=name)
>     295 try:
>     296     # Special methods do not and should not have an option to
>     297     # set the name directly, as the identifier assigned by the
>     298     # interface should stay consistent. An identifier with a
>     299     # user-assigned name might change its value, so we return a
>     300     # new element.
>
> File ~/sage/sage/src/sage/interfaces/interface.py:732, in 
> InterfaceElement.__init__(self, parent, value, is_name, name)
>     731 try:
> --> 732     self._name = parent._create(value, name=name)
>     733 except (TypeError, RuntimeError, ValueError) as x:
>
> File ~/sage/sage/src/sage/interfaces/interface.py:515, in 
> Interface._create(self, value, name)
>     514 name = self._next_var_name() if name is None else name
> --> 515 self.set(name, value)
>     516 return name
>
> File ~/sage/sage/src/sage/interfaces/mathics.py:596, in Mathics.set(self, 
> var, value)
>     595 cmd = f'{var}={value};'
> --> 596 _ = self.eval(cmd)
>
> File ~/sage/sage/src/sage/interfaces/mathics.py:579, in Mathics.eval(self, 
> code, *args, **kwds)
>     570 """
>     571 Evaluates a command inside the Mathics interpreter and returns the 
> output
>     572 in printable form.
>    (...)    577     '2'
>     578 """
> --> 579 res = self._eval(code)
>     580 if res.result == 'Null':
>
> File ~/sage/sage/src/sage/interfaces/mathics.py:562, in 
> Mathics._eval(self, code)
>     553 """
>     554 Evaluates a command inside the Mathics interpreter and returns the 
> output
>     555 as a Mathics result.
>    (...)    560     <Integer: 2>
>     561 """
> --> 562 self._lazy_init()
>     563 S = self._session
>
> File ~/sage/sage/src/sage/interfaces/mathics.py:499, in 
> Mathics._lazy_init(self)
>     498 self._initialized = True
> --> 499 self._start()
>
> File ~/sage/sage/src/sage/interfaces/mathics.py:514, in 
> Mathics._start(self)
>     513 if not self._session:
> --> 514     from mathics.session import MathicsSession
>     515     from mathics.core.load_builtin import import_and_load_builtins
>
> File 
> ~/.conda/envs/sage-dev/lib/python3.12/site-packages/mathics/session.py:19
>      17 from mathics_scanner.location import ContainerKind
> ---> 19 from mathics.core.definitions import Definitions
>      20 from mathics.core.evaluation import Evaluation, Result
>
> File 
> ~/.conda/envs/sage-dev/lib/python3.12/site-packages/mathics/core/definitions.py:17
>      15 from mathics_scanner.tokeniser import full_names_pattern
> ---> 17 from mathics.core.atoms import Integer, String
>      18 from mathics.core.attributes import A_NO_ATTRIBUTES
>
> File 
> ~/.conda/envs/sage-dev/lib/python3.12/site-packages/mathics/core/atoms.py:50
>      47 T = TypeVar("T")
> ---> 50 class Number(Atom, ImmutableValueMixin, NumericOperators, 
> Generic[T]):
>      51     """
>      52     Different kinds of Mathics Numbers, the main built-in 
> subclasses
>      53     being: Integer, Rational, Real, Complex.
>      54     """
>
> File 
> ~/.conda/envs/sage-dev/lib/python3.12/site-packages/mathics/core/atoms.py:119,
>  
> in Number()
>     117     return True
> --> 119 def to_mpmath(self, precision: Optional[int] = None) -> 
> mpmath.ctx_mp_python.mpf:
>     120     """
>     121     Convert self.value to an mpmath number with precision 
> ``precision``
>     122     If ``precision`` is None, use mpmath's default precision.
>    (...)    127     change the implementation accordingly.
>     128     """
>
> AttributeError: module 'mpmath.ctx_mp_python' has no attribute 'mpf'
>
> During handling of the above exception, another exception occurred:
>
> TypeError                                 Traceback (most recent call last)
> Cell In[2], line 1
> ----> 1 mobj = mathics(x**Integer(2) - Integer(1)); mobj
>
> File ~/sage/sage/src/sage/interfaces/interface.py:301, in 
> Interface.__call__(self, x, name)
>     294     return cls(self, x, name=name)
>     295 try:
>     296     # Special methods do not and should not have an option to
>     297     # set the name directly, as the identifier assigned by the
>     298     # interface should stay consistent. An identifier with a
>     299     # user-assigned name might change its value, so we return a
>     300     # new element.
> --> 301     result = self._coerce_from_special_method(x)
>     302     return result if name is None else result.name(new_name=name)
>     303 except TypeError:
>
> File ~/sage/sage/src/sage/interfaces/interface.py:331, in 
> Interface._coerce_from_special_method(self, x)
>     329     return (x.__getattribute__(s))(self)
>     330 except AttributeError:
> --> 331     return self(x._interface_init_())
>
> File sage/symbolic/expression.pyx:1151, in 
> sage.symbolic.expression.Expression._interface_init_()
>
> TypeError: _interface_init_() takes exactly 1 positional argument (0 given)
> sage:
>
>

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