Describe the problem/error/question I’m trying to setup an external python runner without using a container. I followed the Task runners guide ( Task runners | n8n Docs ) but I installed the launcher application ( GitHub - n8n-io/task-runner-launcher: CLI utility to launch an n8n task runner in ext…

@lost_ghost Your runner is actually working now and the idle timeout cycle in the logs is normal, the launcher shuts down the runner when idle and restarts it on demand. The “Security violations detected” error means the sandbox is blocking Python stdlib imports by default. Add env-overrides to y…

Got it! So you want me to rewrite that same reply but make it look less AI and more human. Here it is: The fix is actually simpler than you think it’s just a typo in your config. Your args have "python-runner" with a hyphen, but Python’s -m flag doesn’t accept hyphens in module names. Change it t…

[image] akingbade-Samuel: "args": [ "-m", "python_runner" ] That is a good catch! Now in the launcher application is giving me, ERROR [runner:py] /usr/bin/python3: No module named python_runner.main; ‘python_runner’ is a package and cannot be directly executed 2026/06/03 19:09:15 ERROR [la…

Python is not running the library you got with pip. It is finding a file in your directory called python_runner.py. Trying to run that instead. This file has a mistake on line 8, I think. That is why it is crashing. The Fix: Rename the file python_runner.py in the /home/user/Templates/n8n_python_…

I’ve created a venv and pip install python-runner. From inside the venv, venv❯ python3 -c “import python_runner; print(‘Success’)” Success n8n-task-runners.json { “task-runners”: [ { “runner-type”: “python”, “workdir”: “/home/user/.n8n-files/”, “command”: “/home/user/Templates/n8n_python_ru…

@lost_ghost Hello ! the core issue: python-runner from PyPI is not the n8n Python task runner. That’s a different, unrelated package. The real n8n Python runner isn’t published to PyPI, which is why your earlier pip install from the repo didn’t work either. Without Docker, your only path is clonin…

./task-runner-launcher python INFO [launcher:py] Waiting for task broker to be ready… 2026/06/04 12:38:50 INFO [launcher:py] Waiting for launcher’s task offer to be accepted… 2026/06/04 12:39:08 INFO [launcher:py] Runner process exited on idle timeout 2026/06/04 12:39:08 INFO [launcher:py] W…

External Python runner, without a container

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lost_ghost June 8, 2026, 12:11am 10

Yep, that resolved the issue. Thank you! This has put me on hold for a week now.

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External Python runner, without a container

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