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python sympy

Answers (1)

March 11, 2026 Score: 3 Rep: 438 Quality: Low Completeness: 50%

Override just the UnevaluatedExpr printing rule:

from sympy import 
from sympy.printing.str import StrPrinter
class FixedStrPrinter(StrPrinter):
    def _print_UnevaluatedExpr(self, expr):
        return f"({self._print(expr.args[0])})"
def pprint_fixed(expr):
    return FixedStrPrinter().doprint(expr)
x, y = symbols('x y')
ue1 = UnevaluatedExpr(-2x2 + 3x + 2)
ue2 = UnevaluatedExpr(-5x2 + 6x - 7)
print(pprint_fixed(ue1 + ue2))

(-2x2 + 3x + 2) + (-5x2 + 6*x - 7)