code: def show_abierrors(self, nids=None, stream=sys.stdout):
          
          lines = []
          app = lines.append
  
          for task in self.iflat_tasks(status=self.S_ABICRITICAL, nids=nids):
              header = "=== " + task.qout_file.path + "==="
              app(header)
              report = task.get_event_report()
  
              if report is not None:
                  app("num_errors: %s, num_warnings: %s, num_comments: %s" % (
                      report.num_errors, report.num_warnings, report.num_comments))
                  app("*** ERRORS ***")
                  app("\n".join(str(e) for e in report.errors))
                  app("*** BUGS ***")
                  app("\n".join(str(b) for b in report.bugs))
  
              else:
                  app("get_envent_report returned None!")
  
              app("=" * len(header) + 2*"\n")
  
          return stream.writelines(lines)
docs: Write to the given stream the list of ABINIT errors for all tasks whose status is S_ABICRITICAL.
  
          Args:
              nids: optional list of node identifiers used to filter the tasks.
              stream: File-like object. Default: sys.stdout