project_folder = 'example\\
total_art = 500

# create a layers map in layers_map_path.
create_json()

# user need to edit layers_map.json in layers_map_path to put in the weight on each attribute.
# generate attributes for all the art, save as json file in attribute_map_path.
generate_att()

# generate image based on the  attribute_map.json
generate_art()

#multiprocessing for generate_art()
from itertools import islice
from multiprocessing import Process
if __name__ == '__main__':
    with open(project_folder + 'attributes_map.json', 'r') as f:
        attribute_map = json.load(f, object_pairs_hook=OrderedDict)
    def chunks(data, SIZE=100):
       it = iter(data)
       for i in range(0, len(data), SIZE):
          yield {k:data[k] for k in islice(it, SIZE)}
    for item in chunks(attribute_map):
        proc = Process(target=generate_art, args=(item,))
        proc.start()