code: def secret_finder(self):
          
          secretlist = list()
          if os.path.isfile(self.secret_file):
              # Open the file, and put the contents into a list
              with open(self.secret_file, 'r') as secret:
                  for line in secret:
                      secretlist.append(line.rstrip())
              # Extract the key and secret from the list
              self.consumer_key = secretlist[0]
              self.consumer_secret = secretlist[1]
          else:
              print('"Cannot find the secret.txt file required for authorization. '
                    'Please ensure that this file exists, and that the supplied consumer key is on the '
                    'first line, and the consumer secret is on he second line. '
                    'Contact keith.jolley@zoo.ox.ac.uk for an account, and the necessary keys')
              quit()
docs: Parses the supplied secret.txt file for the consumer key and secrets