monkey patching a Py5Image to allow pickling

image_pickle_concept.py

import pickle
import py5

from py5 import Py5Image
old_new = Py5Image.__new__


def new_new(self, *args):
    if args:
        return old_new(self, *args)
    else:
        return object.__new__(Py5Image)   
    
def getstate(self):
    self.load_np_pixels()
    return self.np_pixels

def setstate(self, d):
    img = py5.create_image_from_numpy(d)
    #self._instace = img._instance
    self.__dict__ = img.__dict__

def setup():
    global img, unpickled_img
    py5.size(800, 800)

    Py5Image.__getstate__ = getstate
    Py5Image.__setstate__ = setstate
    Py5Image.__new__ = new_new
    
    img_path = 'sample.png' # Sample from sketh 2023_07_22
    img = py5.load_image(img_path)
    
    unpickled_img = None
    
def draw():
    if unpickled_img is not None:
        py5.image(unpickled_img, 0, 0)

def key_pressed():
    if py5.key == 'd':
        with open('a.pickle', 'wb') as f:
            pickle.dump(img, f)
    elif py5.key == 'l':
        global unpickled_img
        with open('a.pickle', 'rb') as f:    
            unpickled_img = pickle.load(f)
            
py5.run_sketch(block=False)