Python ThreadPoolExecutor Swallowed 212 Claude API Errors Silently
My Claude labeling job finished in 14 minutes, printed done , and exited with code 0. Every log line was green. Three days later a dashboard said I had 3,788 labeled documents. I had sent 4,000. Nothing crashed. Nothing warned. Python's ThreadPoolExecutor swallowed exceptions from 212 API calls and…
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- 2026-10-31 12:11 · DEV Community — AI
Python ThreadPoolExecutor Swallowed 212 Claude API Errors Silently