Method _checkReadable

tools/python-3.11.9-amd64/Lib/_pyio.py:1646–1648

(self)

                    (class_name, name, self.mode, self._closefd))

    def _checkReadable(self):
        if not self._readable:
            raise UnsupportedOperation('File not open for reading')

    def _checkWritable(self, msg=None):
        if not self._writable: