code: def try_opening_file(self):
          '''Try to open the input file'''
          if os.path.isfile(self.path):
              self.file = open(self.path, 'r')
              self.file_is_opened = Truf try_opening_file(self):
          '''Try to open the input file'''
          if os.path.isfile(self.path):
              self.file = open(self.path, 'r')
              self.file_is_opened = True
docs: Try to open the input file