Probart is a helper library I use in my generative art experiments.
It sits on top of PyCairo and NumPy. Nothing beneficial, only a draft. Right now, you could draw just multi-line paths with it::
from probart.canvas import EntropyCanvas
width = 1920
height = 1080
background_color = (0, 0, 0, 0)
canvas = EntropyCanvas(width, height, background_color)
path = [(0, 0), (1, 1)]
start_color = (0.7, 0, 1, 0.1)
end_color = (1, 1, 1, 0.1)
num_clones = 100
line_width = 1 / width
main_deviation = 0.01
sub_deviation = 0.005
canvas.multiline(path, start_color, end_color, num_clones, line_width, main_deviation, sub_deviation)