Method readinto

tools/python-3.11.9-amd64/Lib/_pyio.py:1705–1711

Same as RawIOBase.readinto().

(self, b)

        return bytes(result)

    def readinto(self, b):
        """Same as RawIOBase.readinto()."""
        m = memoryview(b).cast('B')
        data = self.read(len(m))
        n = len(data)
        m[:n] = data
        return n

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