Eq(_, v0) throws error is there an exception for this?

[BMFI]

Eq(_, v0) this line throws the error:

SympifyError Traceback (most recent call last)
Cell In[32], line 2
1 #Set this equal to(Initial velocity) v_0
----> 2 Eq(_, v0)

File ~\anaconda3\Lib\site-packages\sympy\core\relational.py:614, in Equality.new(cls, lhs, rhs, **options)
612 def new(cls, lhs, rhs, **options):
613 evaluate = options.pop('evaluate', global_parameters.evaluate)
--> 614 lhs = _sympify(lhs)
615 rhs = _sympify(rhs)
616 if evaluate:

File ~\anaconda3\Lib\site-packages\sympy\core\sympify.py:528, in _sympify(a)
502 def _sympify(a):
503 """
504 Short version of :func:~.sympify for internal usage for __add__ and
505 __eq__ methods where it is ok to allow some things (like Python
(...)
526
527 """
--> 528 return sympify(a, strict=True)

File ~\anaconda3\Lib\site-packages\sympy\core\sympify.py:449, in sympify(a, locals, convert_xor, strict, rational, evaluate)
446 continue
448 if strict:
--> 449 raise SympifyError(a)
451 if iterable(a):
452 try:

SympifyError: SympifyError: '[{"varName": "Abs", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Abs", "isMatrix": false, "isWidget": false}, {"varName": "And", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "And", "isMatrix": false, "isWidget": false}, {"varName": "C1", "varType": "Symbol", "varSize": "80", "varShape": "", "varContent": "C1", "isMatrix": false, "isWidget": false}, {"varName": "C2", "varType": "Symbol", "varSize": "80", "varShape": "", "varContent": "C2", "isMatrix": false, "isWidget": false}, {"varName": "CC", "varType": "ComplexField", "varSize": "56", "varShape": "", "varContent": "CC", "isMatrix": false, "isWidget": false}, {"varName": "Catalan", "varType": "Catalan", "varSize": "56", "varShape": "", "varContent": "Catalan", "isMatrix": false, "isWidget": false}, {"varName": "Chi", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Chi", "isMatrix": false, "isWidget": false}, {"varName": "Ci", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Ci", "isMatrix": false, "isWidget": false}, {"varName": "Complexes", "varType": "Complexes", "varSize": "80", "varShape": "", "varContent": "Complexes", "isMatrix": false, "isWidget": false}, {"varName": "Contains", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Contains", "isMatrix": false, "isWidget": false}, {"varName": "CosineTransform", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "CosineTransform", "isMatrix": false, "isWidget": false}, {"varName": "DiracDelta", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "DiracDelta", "isMatrix": false, "isWidget": false}, {"varName": "E", "varType": "Exp1", "varSize": "56", "varShape": "", "varContent": "E", "isMatrix": false, "isWidget": false}, {"varName": "EX", "varType": "ExpressionDomain", "varSize": "56", "varShape": "", "varContent": "EX", "isMatrix": false, "isWidget": false}, {"varName": "EXRAW", "varType": "ExpressionRawDomain", "varSize": "56", "varShape": "", "varContent": "EXRAW", "isMatrix": false, "isWidget": false}, {"varName": "Ei", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Ei", "isMatrix": false, "isWidget": false}, {"varName": "EmptySequence", "varType": "EmptySequence", "varSize": "80", "varShape": "", "varContent": "EmptySequence", "isMatrix": false, "isWidget": false}, {"varName": "EmptySet", "varType": "EmptySet", "varSize": "80", "varShape": "", "varContent": "EmptySet", "isMatrix": false, "isWidget": false}, {"varName": "Equivalent", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Equivalent", "isMatrix": false, "isWidget": false}, {"varName": "EulerGamma", "varType": "EulerGamma", "varSize": "56", "varShape": "", "varContent": "EulerGamma", "isMatrix": false, "isWidget": false}, {"varName": "FU", "varType": "dict", "varSize": "832", "varShape": "24 keys", "varContent": "{'TR0': <function TR0 at 0x000001CD9C124AE0>, 'TR1': <function TR1 at 0x000001CD9C124B80>, 'TR2': <function TR2 at 0x000001CD9C124C20>, 'TR3': <functi ...", "isMatrix": false, "isWidget": false}, {"varName": "FallingFactorial", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "FallingFactorial", "isMatrix": false, "isWidget": false}, {"varName": "FourierTransform", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "FourierTransform", "isMatrix": false, "isWidget": false}, {"varName": "Function", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Function", "isMatrix": false, "isWidget": false}, {"varName": "GoldenRatio", "varType": "GoldenRatio", "varSize": "56", "varShape": "", "varContent": "GoldenRatio", "isMatrix": false, "isWidget": false}, {"varName": "HankelTransform", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "HankelTransform", "isMatrix": false, "isWidget": false}, {"varName": "Heaviside", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Heaviside", "isMatrix": false, "isWidget": false}, {"varName": "I", "varType": "ImaginaryUnit", "varSize": "56", "varShape": "", "varContent": "I", "isMatrix": false, "isWidget": false}, {"varName": "ITE", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "ITE", "isMatrix": false, "isWidget": false}, {"varName": "Id", "varType": "IdentityFunction", "varSize": "80", "varShape": "", "varContent": "Lambda(_x, _x)", "isMatrix": false, "isWidget": false}, {"varName": "Implies", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Implies", "isMatrix": false, "isWidget": false}, {"varName": "Integers", "varType": "Integers", "varSize": "80", "varShape": "", "varContent": "Integers", "isMatrix": false, "isWidget": false}, {"varName": "InverseCosineTransform", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "InverseCosineTransform", "isMatrix": false, "isWidget": false}, {"varName": "InverseFourierTransform", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "InverseFourierTransform", "isMatrix": false, "isWidget": false}, {"varName": "InverseHankelTransform", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "InverseHankelTransform", "isMatrix": false, "isWidget": false}, {"varName": "InverseLaplaceTransform", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "InverseLaplaceTransform", "isMatrix": false, "isWidget": false}, {"varName": "InverseMellinTransform", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "InverseMellinTransform", "isMatrix": false, "isWidget": false}, {"varName": "InverseSineTransform", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "InverseSineTransform", "isMatrix": false, "isWidget": false}, {"varName": "KroneckerDelta", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "KroneckerDelta", "isMatrix": false, "isWidget": false}, {"varName": "LambertW", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "LambertW", "isMatrix": false, "isWidget": false}, {"varName": "LaplaceTransform", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "LaplaceTransform", "isMatrix": false, "isWidget": false}, {"varName": "LeviCivita", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "LeviCivita", "isMatrix": false, "isWidget": false}, {"varName": "Li", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Li", "isMatrix": false, "isWidget": false}, {"varName": "Max", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Max", "isMatrix": false, "isWidget": false}, {"varName": "MellinTransform", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "MellinTransform", "isMatrix": false, "isWidget": false}, {"varName": "Min", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Min", "isMatrix": false, "isWidget": false}, {"varName": "Mod", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Mod", "isMatrix": false, "isWidget": false}, {"varName": "Nand", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Nand", "isMatrix": false, "isWidget": false}, {"varName": "Naturals", "varType": "Naturals", "varSize": "80", "varShape": "", "varContent": "Naturals", "isMatrix": false, "isWidget": false}, {"varName": "Naturals0", "varType": "Naturals0", "varSize": "80", "varShape": "", "varContent": "Naturals0", "isMatrix": false, "isWidget": false}, {"varName": "Nor", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Nor", "isMatrix": false, "isWidget": false}, {"varName": "Not", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Not", "isMatrix": false, "isWidget": false}, {"varName": "Or", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Or", "isMatrix": false, "isWidget": false}, {"varName": "Piecewise", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Piecewise", "isMatrix": false, "isWidget": false}, {"varName": "QQ", "varType": "RationalField", "varSize": "56", "varShape": "", "varContent": "QQ", "isMatrix": false, "isWidget": false}, {"varName": "QQ_I", "varType": "GaussianRationalField", "varSize": "56", "varShape": "", "varContent": "QQ_I", "isMatrix": false, "isWidget": false}, {"varName": "RR", "varType": "RealField", "varSize": "56", "varShape": "", "varContent": "RR", "isMatrix": false, "isWidget": false}, {"varName": "Rationals", "varType": "Rationals", "varSize": "80", "varShape": "", "varContent": "Rationals", "isMatrix": false, "isWidget": false}, {"varName": "Reals", "varType": "Reals", "varSize": "80", "varShape": "", "varContent": "Reals", "isMatrix": false, "isWidget": false}, {"varName": "Rem", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Rem", "isMatrix": false, "isWidget": false}, {"varName": "RisingFactorial", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "RisingFactorial", "isMatrix": false, "isWidget": false}, {"varName": "S", "varType": "SingletonRegistry", "varSize": "32", "varShape": "", "varContent": "S", "isMatrix": false, "isWidget": false}, {"varName": "Shi", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Shi", "isMatrix": false, "isWidget": false}, {"varName": "Si", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Si", "isMatrix": false, "isWidget": false}, {"varName": "SineTransform", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "SineTransform", "isMatrix": false, "isWidget": false}, {"varName": "SingularityFunction", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "SingularityFunction", "isMatrix": false, "isWidget": false}, {"varName": "TribonacciConstant", "varType": "TribonacciConstant", "varSize": "56", "varShape": "", "varContent": "TribonacciConstant", "isMatrix": false, "isWidget": false}, {"varName": "UniversalSet", "varType": "UniversalSet", "varSize": "80", "varShape": "", "varContent": "UniversalSet", "isMatrix": false, "isWidget": false}, {"varName": "WildFunction", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "WildFunction", "isMatrix": false, "isWidget": false}, {"varName": "Xor", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Xor", "isMatrix": false, "isWidget": false}, {"varName": "Ynm", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Ynm", "isMatrix": false, "isWidget": false}, {"varName": "ZZ", "varType": "IntegerRing", "varSize": "56", "varShape": "", "varContent": "ZZ", "isMatrix": false, "isWidget": false}, {"varName": "ZZ_I", "varType": "GaussianIntegerRing", "varSize": "56", "varShape": "", "varContent": "ZZ_I", "isMatrix": false, "isWidget": false}, {"varName": "Znm", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "Znm", "isMatrix": false, "isWidget": false}, {"varName": "acos", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "acos", "isMatrix": false, "isWidget": false}, {"varName": "acosh", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "acosh", "isMatrix": false, "isWidget": false}, {"varName": "acot", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "acot", "isMatrix": false, "isWidget": false}, {"varName": "acoth", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "acoth", "isMatrix": false, "isWidget": false}, {"varName": "acsc", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "acsc", "isMatrix": false, "isWidget": false}, {"varName": "acsch", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "acsch", "isMatrix": false, "isWidget": false}, {"varName": "adjoint", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "adjoint", "isMatrix": false, "isWidget": false}, {"varName": "airyai", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "airyai", "isMatrix": false, "isWidget": false}, {"varName": "airyaiprime", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "airyaiprime", "isMatrix": false, "isWidget": false}, {"varName": "airybi", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "airybi", "isMatrix": false, "isWidget": false}, {"varName": "airybiprime", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "airybiprime", "isMatrix": false, "isWidget": false}, {"varName": "andre", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "andre", "isMatrix": false, "isWidget": false}, {"varName": "appellf1", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "appellf1", "isMatrix": false, "isWidget": false}, {"varName": "arg", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "arg", "isMatrix": false, "isWidget": false}, {"varName": "asec", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "asec", "isMatrix": false, "isWidget": false}, {"varName": "asech", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "asech", "isMatrix": false, "isWidget": false}, {"varName": "asin", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "asin", "isMatrix": false, "isWidget": false}, {"varName": "asinh", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "asinh", "isMatrix": false, "isWidget": false}, {"varName": "assoc_laguerre", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "assoc_laguerre", "isMatrix": false, "isWidget": false}, {"varName": "assoc_legendre", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "assoc_legendre", "isMatrix": false, "isWidget": false}, {"varName": "atan", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "atan", "isMatrix": false, "isWidget": false}, {"varName": "atan2", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "atan2", "isMatrix": false, "isWidget": false}, {"varName": "atanh", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "atanh", "isMatrix": false, "isWidget": false}, {"varName": "bell", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "bell", "isMatrix": false, "isWidget": false}, {"varName": 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"isMatrix": false, "isWidget": false}, {"varName": "betainc_regularized", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "betainc_regularized", "isMatrix": false, "isWidget": false}, {"varName": "binomial", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "binomial", "isMatrix": false, "isWidget": false}, {"varName": "carmichael", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "carmichael", "isMatrix": false, "isWidget": false}, {"varName": "catalan", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "catalan", "isMatrix": false, "isWidget": false}, {"varName": "ceiling", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "ceiling", "isMatrix": false, "isWidget": false}, {"varName": "chebyshevt", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "chebyshevt", "isMatrix": false, "isWidget": false}, {"varName": 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"1688", "varShape": "", "varContent": "dirichlet_eta", "isMatrix": false, "isWidget": false}, {"varName": "divisor_sigma", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "divisor_sigma", "isMatrix": false, "isWidget": false}, {"varName": "elliptic_e", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "elliptic_e", "isMatrix": false, "isWidget": false}, {"varName": "elliptic_f", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "elliptic_f", "isMatrix": false, "isWidget": false}, {"varName": "elliptic_k", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "elliptic_k", "isMatrix": false, "isWidget": false}, {"varName": "elliptic_pi", "varType": "FunctionClass", "varSize": "1688", "varShape": "", "varContent": "elliptic_pi", "isMatrix": false, "isWidget": false}, {"varName": "eq", "varType": "Equality", "varSize": "56", "varShape": "", "varContent": "Eq(w**2x(t) + 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[JasonWeill]

@BMFI Thank you for your contribution! It looks like this is an exception that is coming from SymPy. If this issue recurs and you think it represents a bug in SymPy, please open an issue here: https://github.com/sympy/sympy/issues/