Author of Fire here. Was super happy to pass the 10000 star mark on GitHub today thanks to this HN post :) -- that boosted my spirits on an otherwise long and rainy (and now delayed) bus ride.
Hope you find Fire useful!
What's next for Python Fire? We're working on improving the help screens and usage outputs so it feels less like a developer tool and more like a professional grade CLI. So stay tuned as it gets better!