Method readinto

Lib/_pyio.py:1744–1751

Same as RawIOBase.readinto().

(self, buffer)

        return result.take_bytes()

    def readinto(self, buffer):
        """Same as RawIOBase.readinto()."""
        self._checkClosed()
        self._checkReadable()
        try:
            return os.readinto(self._fd, buffer)
        except BlockingIOError:
            return None

    def write(self, b):
        """Write bytes b to file, return number written.