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Tachyon does not handle non-existent file/module #142591

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Tachyon does not handle non-existent file/module#142591
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savannahostrowski
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3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixesstdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directorytopic-profilingtype-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error
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@savannahostrowski
savannahostrowski
opened on Dec 11, 2025
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Bug report

Screen.Recording.2025-12-11.at.10.10.25.AM.mov

When running the profiler with a non-existent script or module, it silently launches the TUI with empty output instead of erroring early. To reproduce

./python.exe -m profiling.sampling run --live nonexistent_script.py
./python.exe -m profiling.sampling run --live -m nonexistent_module

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3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixesstdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directorytopic-profilingtype-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

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