Method readinto

Lib/_pyio.py:1723–1730

Same as RawIOBase.readinto().

(self, buffer)

        return bytes(result)

    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.