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Fix Python Permission Denied on pip install --no-cache-dir - Resolve Nginx Permission Error on Unix Socket-Fix Git 'index.lock' File Exists Error on Linux

2026-07-28 11:01:34developer-tools

Fix Python Permission Denied on pip install --no-cache-dir - Resolve Nginx Permission Error on Unix Socket-Fix Git 'index.lock' File Exists Error on Linux

Final checklist

Confirm that the same symptom is gone after a restart or refresh.
Keep the smallest working change and undo temporary diagnostic settings.