Convert images drawn by turtle to PNG in Python

Question

I'm making a abstract art template generator in Python that takes inputs of minimum radius, maximum radius, and number of circles. It draws random circles in random places, also meeting the user's specifications. I want to convert the Turtle graphics into a PNG so that the user can then edit the template however he/she wants to, but I don't know how to proceed. Here's my code:

import random  
import time  
import turtle  

print("Abstract Art Template Generator")
print()
print("This program will generate randomly placed and sized circles on a blank screen.")
num = int(input("Please specify how many circles you would like to be drawn: "))
radiusMin = int(input("Please specify the minimum radius you would like to have: "))
radiusMax = int(input("Please specify the maximum radius you would like to have: "))
screenholder = input("Press ENTER when you are ready to see your circles drawn: ")

t = turtle.Pen()

win = turtle.Screen()


def mycircle():
    x = random.randint(radiusMin,radiusMax) 
    t.circle(x)

    t.up()
    y = random.randint(0,360)
    t.seth(y)
    if t.xcor() < -300 or t.xcor() > 300:
        t.goto(0, 0)
    elif t.ycor() < -300 or t.ycor() > 300:
        t.goto(0, 0)
    z = random.randint(0,100)
    t.forward(z)
    t.down()


for i in range(0, num):
    mycircle()


turtle.done()

Answer 1

You can use turtle.getcanvas() to generate Tkinker canvas. Then save it as postscript file.

...
cv = turtle.getcanvas()
cv.postscript(file="file_name.ps", colormode='color')

turtle.done()

Then you can convert it to png (I think you will find how to do it). Or use PIL with Tkinker - more about this method here