except Exception:
raise ExprError(expr)
self.__expr = compile(self.__expr, __file__, "eval")
def __call__(self, params, rank):
"""Evaluate the expression and return its value."""
except Exception:
raise ExprError(expr)
self.__expr = compile(self.__expr, __file__, "eval")
def __call__(self, params, rank):
"""Evaluate the expression and return its value."""