This is a short post describing how to debug Flask apps with the ever-useful rpdb, along with a few gotchas to be careful of. Our workhorse web backend is Flask+uWSGI, running on standalone EC2 instances. At the same time we rely on Twisted for several backend services. On occasion a Thinkster might need to debug one of these services on one of the EC2 instances. Due to our instance isolation strategy, itโs tricky to get fancy remote debugging running, such …