code: def prt_summary_anno2ev(self, associations, prt=sys.stdout):
          
          ctr = cx.Counter()
          for ntanno in associations:
              evidence_code = ntanno.Evidence_Code
              if 'NOT' not in ntanno.Qualifier:
                  ctr[evidence_code] += 1
              elif 'NOT' in ntanno.Qualifier:
                  ctr["NOT {EV:3}".format(EV=ntanno.Evidence_Code)] += 1
              else:
                  raise Exception("UNEXPECTED INFO")
          self.prt_ev_cnts(ctr, prt)
docs: Print annotation/evidence code summary.