line_resize.py

def line_resize(lines, width):
    count = len(lines)
    index = 0
    while index < count:
	line = lines[index]
	line_lenth = len(line)
	if line_lenth > width:
	    s_width = 0
	    while s_width < line_lenth:
		yield line[s_width:s_width+width]
	        s_width += width
	    index += 1
	else:
	    yield line
	    index += 1