code: def _report_error(info):
      """Interprets the return code of the odr routine.
  
      Parameters
      ----------
      info : int
          The return code of the odr routine.
  
      Returns
      -------
      problems : list(str)
          A list of messages about why the odr() routine stopped.
      """
  
      stopreason = (
          "Blank",
          "Sum of squares convergence",
          "Parameter convergence",
          "Both sum of squares and parameter convergence",
          "Iteration limit reached",
      )[info % 5]
  
      if info >= 5:
          # questionable results or fatal error
  
          I = (
              info // 10000 % 10,
              info // 1000 % 10,
              info // 100 % 10,
              info // 10 % 10,
              info % 10,
          )
          problems = []
  
          if I[0] == 0:
              if I[1] != 0:
                  problems.append("Derivatives possibly not correct")
              if I[2] != 0:
                  problems.append("Error occurred in callback")
              if I[3] != 0:
                  problems.append(
                      "Problem is not full rank at solution"
                  )
              problems.append(stopreason)
          elif I[0] == 1:
              if I[1] != 0:
                  problems.append("N < 1")
              if I[2] != 0:
                  problems.append("M < 1")
              if I[3] != 0:
                  problems.append("NP < 1 or NP > N")
              if I[4] != 0:
                  problems.append("NQ < 1")
          elif I[0] == 2:
              if I[1] != 0:
                  problems.append("LDY and/or LDX incorrect")
              if I[2] != 0:
                  problems.append(
                      "LDWE, LD2WE, LDWD, and/or LD2WD incorrect"
                  )
              if I[3] != 0:
                  problems.append(
                      "LDIFX, LDSTPD, and/or LDSCLD incorrect"
                  )
              if I[4] != 0:
                  problems.append("LWORK and/or LIWORK too small")
          elif I[0] == 3:
              if I[1] != 0:
                  problems.append("STPB and/or STPD incorrect")
              if I[2] != 0:
                  problems.append("SCLB and/or SCLD incorrect")
              if I[3] != 0:
                  problems.append("WE incorrect")
              if I[4] != 0:
                  problems.append("WD incorrect")
          elif I[0] == 4:
              problems.append("Error in derivatives")
          elif I[0] == 5:
              problems.append("Error occurred in callback")
          elif I[0] == 6:
              problems.append("Numerical error detected")
  
          return problems
  
      else:
          return [stopreason]
  
imports: import os
  import numpy
  from warnings import warn
  from scipy.odr import __odrpack
label_desc: Use image node_id 2 for calling a global function with example usage: _report_error(info) and returns: problems, list