(self)
Prepends the grid with an empty column.
Prepends the grid with an empty column.
Prepends the grid with an empty column .
def prepend_column(self):
        """
        Prepends the grid with an empty column.
        """
        self._width += 1
        for i in xrange(self._height):
            self._array[i].insert(0, None)
def prepend_column ( self ) : self . _width += 1 for i in xrange ( self . _height ) : self . _array [ i ] . insert ( 0 , None )