Any time I try to use find_root, whether in the notebook or the interpreter, it gives me an import error complaining that it can't find libgfortran
This has persisted after re-installing
I installed sage through the MacOS dmg, it is running the arm64 version on an M1, and the version of sage is 9.7
Does anyone know why this might be happening?
It gives this specific error:
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
Input In [1], in <cell line: 1>()
----> 1 find_root(x**Integer(2)==Integer(2),Integer(1),Integer(3))
File /private/var/tmp/sage-9.7-current/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/sage/misc/lazy_import.pyx:391, in sage.misc.lazy_import.LazyImport.__call__ (build/cythonized/sage/misc/lazy_import.c:4397)()
389 True
390 """
--> 391 return self.get_object()(*args, **kwds)
392
393 def __repr__(self):
File /private/var/tmp/sage-9.7-current/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/sage/numerical/optimize.py:106, in find_root(f, a, b, xtol, rtol, maxiter, full_output)
20 r"""
21 Numerically find a root of ``f`` on the closed interval `[a,b]`
22 (or `[b,a]`) if possible, where ``f`` is a function in the one variable.
(...)
103
104 """
105 try:
--> 106 return f.find_root(a=a,b=b,xtol=xtol,rtol=rtol,maxiter=maxiter,full_output=full_output)
107 except AttributeError:
108 pass
File /private/var/tmp/sage-9.7-current/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/sage/symbolic/expression.pyx:12596, in sage.symbolic.expression.Expression.find_root (build/cythonized/sage/symbolic/expression.cpp:93733)()
12594 f = self._plot_fast_callable(self.default_variable())
12595 ff = FastCallableFloatWrapper(f, imag_tol=imaginary_tolerance)
> 12596 return find_root(ff, a=a, b=b, xtol=xtol,
12597 rtol=rtol,maxiter=maxiter,
12598 full_output=full_output)
File /private/var/tmp/sage-9.7-current/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/sage/numerical/optimize.py:157, in find_root(f, a, b, xtol, rtol, maxiter, full_output)
154 a = min(s_1, s_2)
155 b = max(s_1, s_2)
--> 157 import scipy.optimize
158 brentqRes = scipy.optimize.brentq(f, a, b,
159 full_output=full_output, xtol=xtol, rtol=rtol, maxiter=maxiter)
160 # A check following :trac:`4942`, to ensure we actually found a root
161 # Maybe should use a different tolerance here?
162 # The idea is to take roughly the derivative and multiply by estimated
163 # value of the root
File /private/var/tmp/sage-9.7-current/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/scipy/optimize/__init__.py:399, in <module>
1 """
2 =====================================================
3 Optimization and root finding (:mod:`scipy.optimize`)
(...)
396
397 """
--> 399 from ._optimize import *
400 from ._minimize import *
401 from ._root import *
File /private/var/tmp/sage-9.7-current/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/scipy/optimize/_optimize.py:34, in <module>
32 import numpy as np
33 from scipy.sparse.linalg import LinearOperator
---> 34 from ._linesearch import (line_search_wolfe1, line_search_wolfe2,
35 line_search_wolfe2 as line_search,
36 LineSearchWarning)
37 from ._numdiff import approx_derivative
38 from ._hessian_update_strategy import HessianUpdateStrategy
File /private/var/tmp/sage-9.7-current/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/scipy/optimize/_linesearch.py:16, in <module>
1 """
2 Functions
3 ---------
(...)
12
13 """
14 from warnings import warn
---> 16 from scipy.optimize import _minpack2 as minpack2
17 import numpy as np
19 __all__ = ['LineSearchWarning', 'line_search_wolfe1', 'line_search_wolfe2',
20 'scalar_search_wolfe1', 'scalar_search_wolfe2',
21 'line_search_armijo']
ImportError: dlopen(/private/var/tmp/sage-9.7-current/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/scipy/optimize/_minpack2.cpython-310-darwin.so, 0x0002): Library not loaded: '@rpath/libgfortran.5.dylib'
Referenced from: '/Applications/SageMath-9-7.app/Contents/Frameworks/Sage.framework/Versions/9.7/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/scipy/optimize/_minpack2.cpython-310-darwin.so'
Reason: tried: '/Applications/SageMath-9-7.app/Contents/Frameworks/Sage.framework/Versions/9.7/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/scipy/optimize/libgfortran.5.dylib' (no such file), '/Applications/SageMath-9-7.app/Contents/Frameworks/Sage.framework/Versions/9.7/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/scipy/optimize/libgfortran.5.dylib' (no such file), '/Applications/SageMath-9-7.app/Contents/Frameworks/Sage.framework/Versions/9.7/local/var/lib/sage/venv-python3.10.5/bin/../lib/libgfortran.5.dylib' (no such file), '/usr/local/lib/libgfortran.5.dylib' (no such file), '/usr/lib/libgfortran.5.dylib' (no such file)
