Incident Library

Organisation

Python Software Foundation

Python Software Foundation · python-software-foundation

3 cases · 2022 to 2026

Root cause Cloud provider outage1Configuration change1Dependency failure1
Component CDN and edge network1Cloud load balancer1Coordination and key-value store1Ingress controller1Object storage1Secrets store1
Contributing factor Signal buried in noise1Automation amplification1Configuration not in code1Change with a delayed effect1Overlapping failures1Partial rollout1
Symptom Service outage2High error rate1Pods stuck in Terminating1

Cases

  1. IL-0515 Downloads from files.pythonhosted.org failed with intermittent 502 and 503 errors for two weeks, breaking PyPI installsPython Software Foundation · 2026

    Root cause Dependency failure

  2. IL-0513 PyPI backends on Kubernetes were unreachable over HTTPS for 20 minutes when the Ingress ELB lost its HTTPS listenerPython Software Foundation · 2022

    Root cause Configuration change

  3. IL-0514 PyPI's backends stopped responding for 7 minutes as rescheduled pods could not start while Consul and Vault were downPython Software Foundation · 2022

    Root cause Cloud provider outage