把任意图片转换成Python Turtle绘图的py文件

from PIL import Image

f = open('test.py', 'w')

im = Image.open("1.jpg")
x, y = im.size
print(x, y)

f.write("import turtle\n")
f.write("canvasX = {}\n".format(x))
f.write("canvasY = {}\n".format(y))

f.write(
'''
def D(x, y):
    return x - canvasX // 2, - y + canvasY // 2

turtle.screensize(canvasX,canvasY, "white")
turtle.penup()
turtle.goto(D(0,0))
turtle.pendown()
turtle.pensize(1)
turtle.speed(0)
turtle.colormode(255)
turtle.delay(0)
turtle.tracer({},0)
turtle.hideturtle()
'''.format(x))

for y in range(im.size[1]):
    f.write("turtle.penup()\n")
    f.write("turtle.goto(D(0,{}))\n".format(y))
    f.write("turtle.pendown()\n")
    for x in range(im.size[0]):
        pix = im.getpixel((x, y))
        f.write("turtle.pencolor" + str(pix) + "\n")
        f.write("turtle.forward(1)\n")

f.write("turtle.done()\n")

具体使用到了pillow这个库，生成的py文件可以直接运行，能够把图片以像素点的精度绘制出来（大图片会有些慢）