code: def __str__(self):
      s = str(self.holonomic)
      s += " has a singularity at %s." % self.x0
      return s
  
file_path: sympy/sympy/holonomic/holonomicerrors.py
label_desc: Use image node_id 2 for calling the SingularityError obj's underlying member method code with example usage: obj.__str__() and returns: s