Sagemath-Fricas issue. AttributeError: 'NoneType' object has no attribute 'replace' calling integrate

[nasser1]

Steps To Reproduce

Using sagemath 10.3 with Fricas :

sage --version
SageMath version 10.3, Release Date: 2024-03-19

>fricas --version
FriCAS 1.3.10
based on sbcl 2.3.11
>

Sage gives AttributeError: 'NoneType' object has no attribute 'replace' on an integral which Fricas directly can do

>sage
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 10.3, Release Date: 2024-03-19                    │
│ Using Python 3.11.8. Type "help()" for help.                       │
└────────────────────────────────────────────────────────────────────┘
sage: print(fricas.eval(")lisp |$build_version|"))

Value = "FriCAS 1.3.10"

sage: var('x a b B y A')
(x, a, b, B, y, A)
sage: integrate((x^2+1)^(1/2)/(x^2+(x+(x^2+1)^(1/2))^(1/2)),x, algorithm="fricas")
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Cell In[3], line 1
----> 1 integrate((x**Integer(2)+Integer(1))**(Integer(1)/Integer(2))/(x**Integer(2)+(x+(x**Integer(2)+Integer(1))**(Integer(1)/Integer(2)))**(Integer(1)/Integer(2))),x, algorithm="fricas")

File ~/TMP/sage-10.3/src/sage/misc/functional.py:788, in integral(x, *args, **kwds)
    655 """
    656 Return an indefinite or definite integral of an object ``x``.
    657 
   (...)
    785 
    786 """
    787 if hasattr(x, 'integral'):
--> 788     return x.integral(*args, **kwds)
    789 else:
    790     from sage.symbolic.ring import SR

File ~/TMP/sage-10.3/src/sage/symbolic/expression.pyx:13268, in sage.symbolic.expression.Expression.integral()
  13266                 R = SR
  13267         return R(integral(f, v, a, b, **kwds))
> 13268     return integral(self, *args, **kwds)
  13269 
  13270 integrate = integral

File ~/TMP/sage-10.3/src/sage/symbolic/integration/integral.py:1062, in integrate(expression, v, a, b, algorithm, hold)
   1060     if not integrator:
   1061         raise ValueError("Unknown algorithm: %s" % algorithm)
-> 1062     return integrator(expression, v, a, b)
   1063 if a is None:
   1064     return indefinite_integral(expression, v, hold=hold)

File ~/TMP/sage-10.3/src/sage/symbolic/integration/external.py:207, in fricas_integrator(expression, v, a, b, noPole)
    204     else:
    205         result = e_fricas.integrate(seg)
--> 207 result = result.sage()
    209 if result == "failed":
    210     result = expression.integrate(v, a, b, hold=True)

File ~/TMP/sage-10.3/src/sage/interfaces/interface.py:1123, in InterfaceElement.sage(self, *args, **kwds)
   1104 def sage(self, *args, **kwds):
   1105     """
   1106     Attempt to return a Sage version of this object.
   1107 
   (...)
   1121         [0 0]
   1122     """
-> 1123     return self._sage_(*args, **kwds)

File ~/TMP/sage-10.3/src/sage/interfaces/fricas.py:1999, in FriCASElement._sage_(self)
   1997 # finally translate domains with InputForm
   1998 try:
-> 1999     unparsed_InputForm = P.get_unparsed_InputForm(self._name)
   2000 except RuntimeError as error:
   2001     raise NotImplementedError("the translation of the FriCAS object\n\n%s\n\nto sage is not yet implemented:\n%s" % (self, error))

File ~/TMP/sage-10.3/src/sage/interfaces/fricas.py:805, in FriCAS.get_unparsed_InputForm(self, var)
    785 def get_unparsed_InputForm(self, var):
    786     """
    787     Return the unparsed ``InputForm`` as a string.
    788 
   (...)
    803 
    804     """
--> 805     return self.get_string('unparse((%s)::InputForm)' % str(var))

File ~/TMP/sage-10.3/src/sage/interfaces/fricas.py:755, in FriCAS.get_string(self, var)
    710 """
    711 Return the value of a FriCAS string as a string, without checking
    712 that it is a string.
   (...)
    750 
    751 """
    752 # strip removes leading and trailing whitespace, after that
    753 # we can assume that the first and the last character are
    754 # double quotes
--> 755 return self.get(str(var)).replace("\n", "").strip()[1:-1]

AttributeError: 'NoneType' object has no attribute 'replace'

Calling same integrate inside Fricas directly works and no exception is generated (output not show as output too large)

integrate((x^2+1)^(1/2)/(x^2+(x+(x^2+1)^(1/2))^(1/2)),x)
%no error

Expected Behavior

No exception should be generated

Actual Behavior

Exception generated by sagemath

Additional Information

No response

Environment

Linux on Virtual box

lsb_release -a
LSB Version:	n/a
Distributor ID:	ManjaroLinux
Description:	Manjaro Linux
Release:	23.1.4
Codename:	Vulcan


sage --version
SageMath version 10.3, Release Date: 2024-03-19

Checklist

• I have searched the existing issues for a bug report that matches the one I want to file, without success.
• I have read the documentation and troubleshoot guide