heater makes heatmaps. Inspired by heatmappy but more light weight.
pip install heater
from heater import make_heatmap
with open("background.png") as f:
heatmap = make_heatmap(f, [(1, 2), (3, 4)])
heatmap.save("output.png")
heater is licensed under Apache 2.0. Please see LICENSE for licensing details.