PyPI outage: Python Infrastructure Outage

Affected components

• bugs.python.org
• python.org - Backends
• python.org - CDN
• python.org - Downloads Backends
• us.pycon.org

1. postmortemFeb 26, 2026, 23:26 UTC

   The incident has been resolved. ## Incident Report: Cluster-wide service outage **Duration**: ~36 minutes \(20:04–20:40 UTC\) **Impact**: Some PSF-hosted services were unavailable, including [python.org](http://python.org), [us.pycon.org](http://us.pycon.org), PyPI stats, [bugs.python.org](http://bugs.python.org), and related services. What was unaffected was our other cluster that manages [PyPI.org](http://PyPI.org) among other services related to PyPI. **Root Cause**: During local development of kubernetes workloads locally there was an incorrect context switch to one of our production clusters. The scale-down commands ran against the production cluster instead of the local environment, iterating through all deployments and setting them to zero replicas. which created cascading failures. **Recovery**: Services were restored with the help of Ee Durbin by bringing up infrastructure in dependency order, original replica counts were recovered from Kubernetes event history. Actio

2. resolvedFeb 26, 2026, 23:26 UTC

   The incident has been resolved.

3. investigatingFeb 26, 2026, 20:40 UTC

   The root cause has been identified as an erroneous scaling operation that affected some application workloads. All services have been restored and are coming back online. We are monitoring to confirm full recovery.

4. investigatingFeb 26, 2026, 20:04 UTC

   We are currently investigating this issue

What APIStatus.watch saw

Our 5-minute checks didn't record a change in PyPI's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• Confluent Cloud: Some Confluent Cloud customers accessing services in GCP us-south1 region might experience elevated errors ratesMajor · Feb 25, 2026, 05:01 UTC
• Confluent Cloud: Network provisioning service in Azure East US region is degradedMajor · Feb 26, 2026, 13:59 UTC
• Confluent Cloud: All new dedicated kafka cluster provisioning and expansion in Azure westus3, southcentralus, and eastus2 are failingMajor · Feb 26, 2026, 19:56 UTC

How often does PyPI have incidents?

PyPI reported 3 incidents in the last 90 days, 1 of them major or critical. A typical incident lasted 6h 3m. See PyPI's uptime and incident history