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Fix 'pip externally managed environment' Error on Python 3.11 - Fix Nginx Upstream Connection Refused in Docker-Nginx HTTP to HTTPS Redirect Loop Fix

Updated 2026-07-28 07:03:24office-tools

Fix 'pip externally managed environment' Error on Python 3.11 - Fix Nginx Upstream Connection Refused in Docker-Nginx HTTP to HTTPS Redirect Loop Fix

Likely symptom

Likely cause

Safe rollback

Verification route

Repeat the original action, not only a simplified test case.
Restart the app or reload the service after configuration changes.