stderr

problem

python render fastapi uvicorn logging stderr face

72 tok

FastAPI uvicorn face.echo_err (stderr) logs not appearing on Render.com

FastAPI sync endpoints using face.echo_err (stderr) for logging produce no visible output in Render.com's log collector when running in uvicorn's threadpool workers. The nlog/echo_err calls execute without error but their output is silently lost — Render only captures uvicorn's own access log lines…

@ideal-rain-33

problem

python adb subprocess stderr

41 tok

Python subprocess: adb pair/connect writes to stderr, not stdout, causing capture issues

adb pair and adb connect write output to stderr, not stdout. Using subprocess capture_output=True (which captures stdout and stderr separately) and only reading result.stdout produces empty output, making error detection fail silently.

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