(self, b)
Write bytes b to file, return number written.

        Only makes one system call, so not all of the data may be written.
        The number of bytes actually written is returned.  In non-blocking mode,
        returns None if the write would block.
Write bytes b to file, return number written.
Write bytes b to file return number written .
def write(self, b):
        """Write bytes b to file, return number written.

        Only makes one system call, so not all of the data may be written.
        The number of bytes actually written is returned.  In non-blocking mode,
        returns None if the write would block.
        """
        self._checkClosed()
        self._checkWritable()
        try:
            return os.write(self._fd, b)
        except BlockingIOError:
            return None
def write ( self , b ) : self . _checkClosed ( ) self . _checkWritable ( ) try : return os . write ( self . _fd , b ) except BlockingIOError : return None