How do you exit PDB /and/ kill the program?

Question

How do you kill PDB and the program it's running, similar to LLDB's proc kill; exit or exit (y) commands?

Ctrl+D isn't working and all the questions I see on here are how to exit while keeping the program running. However, I'm sitting in a PDB session and I found a bug that is causing an endless loop, and while there are indeed other things I can do to kill the program I figured I'd ask what the PDB command is to do it.

I have no idea why the existing `q` answer was deleted. It's the documented tool for the job. — user2357112, Dec 17 '18 at 19:33

score 59 · Accepted Answer · edited Dec 18 '18 at 00:50

59

The pdb command to kill the program is q, or quit. Quoting the docs:

q(uit)
Quit from the debugger. The program being executed is aborted.

When q is not enough to stop the loop (perhaps you have a misbehaving except block), you may need to use os._exit(), a low-level command which terminates the process immediately. (q and sys.exit work by throwing exceptions - bdb.BdbQuit for q and SystemExit for sys.exit.) os._exit will prevent any finally blocks or __exit__ methods from running, so you may have to deal with data corruption or data loss.

Ex: import os; os._exit(0)

(https://stackoverflow.com/a/38511414/2036148)

edited Dec 18 '18 at 00:50

user2357112

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answered Dec 17 '18 at 19:24

Edvard Rejthar

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It's been a year since I asked, but I didn't know about this function and I would imagine it would have worked in that situation. Thanks :) – Qix - MONICA WAS MISTREATED Dec 17 '18 at 21:39
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`q` is what you're normally supposed to do, though. `os._exit` will prevent things like `finally` blocks and `__exit__` methods from firing. – user2357112 Dec 18 '18 at 00:43

How do you exit PDB /and/ kill the program?

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