code: def save(self, filename):
          '''save settings to a file. Return True/False on success/failure'''
          try:
              f = open(filename, mode='w')
          except Exception:
              return False
          for k in self.list():
              f.write("%s=%s\n" % (k, self.get(k)))
          f.close()
          return Truf save(self, filename):
          '''save settings to a file. Return True/False on success/failure'''
          try:
              f = open(filename, mode='w')
          except Exception:
              return False
          for k in self.list():
              f.write("%s=%s\n" % (k, self.get(k)))
          f.close()
          return True
docs: save settings to a file. Return True/False on success/failure