code: def wipe_results(self):
          
          # Clean results table
          self.db.purge_table('results')
  
          # Get rid of contents of data dir
          map(shutil.rmtree, glob.glob(os.path.join(self.get_data_dir(), '*.*')))
docs: Remove all results from the database.
  
          This also removes all output files, and cannot be undone.