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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def beautify_file(self, path):
 """Beautify bash script file."""

        error = False
        if(path == '-'):
            data = sys.stdin.read()
            result, error = self.beautify_string(data, '(stdin)')
            sys.stdout.write(result)
        else:  # named file
            data = self.read_file(path)
            result, error = self.beautify_string(data, path)
            if(data != result):
                if(self.check_only):
                    if not error:
                        # we want to return 0 (success) only if the given file is already
                        # well formatted:
                        error = (result != data)
                else:
                    if(self.backup):
                        self.write_file(path+'.bak', data)
                    self.write_file(path, result)
        return error