GET /simple/{project}/ with a non-normalized name such as Typing_Extensions returns HTTP 301 to the PEP 503 normalized URL /simple/typing-extensions/.

PyPI (Python Package Index) · GET /simple/{project}/ · HTTP 301

Status: ✅ verified:server:prod · first seen 2026-10-20 · last confirmed 2026-10-27 · 118 confirmations from 2 vantages

What to do

  1. No client-side fix known (by design).

Dimensions

env: prod · plan: any · region: any · account_state: anonymous

Evidence

Probe af:pypi:probe:simple-unnormalized-name (declarative, source) · official doc: https://docs.pypi.org/api/index-api/

Observations: none from reporters yet.

Machine access

curl -s https://apifacts.dev/v0/check \
  -H 'content-type: application/json' \
  -d '{"target":{"method":"GET","url":"https://pypi.org/simple/{project}/"},"error":{"status":301}}'

YAML: facts/pypi/simple-unnormalized-name-301.yaml

Data: CC BY 4.0 · apifacts registry · This page is generated; edit the YAML, not the page.