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I'd like to run a python script, which uses a virtualenv as a service. I've already researched a bit, but couldn't find a working solution. I've put the path of the virtual env python on the first line of the python. The service looks like this:

[Unit]
Description=Telegram Bot Service
After=multi-user.target
[email protected]

[Service]
Type=simple
ExecStart=/usr/bin/python3.7 /home/pi/github/python/telegrambot.py
StandardInput=tty-force

[Install]
WantedBy=multi-user.target

The error:

● telegrambot.service - Telegram Bot Service
   Loaded: loaded (/lib/systemd/system/telegrambot.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Tue 2020-03-03 15:04:11 GMT; 3s ago
  Process: 15090 ExecStart=/usr/bin/python3.7 /home/pi/github/python/telegrambot.py (code=ex
 Main PID: 15090 (code=exited, status=1/FAILURE)

Mar 03 15:04:11 raspberrypi systemd[1]: Started Telegram Bot Service.
Mar 03 15:04:11 raspberrypi systemd[1]: telegrambot.service: Main process exited, code=exite
Mar 03 15:04:11 raspberrypi systemd[1]: telegrambot.service: Failed with result 'exit-code'.

Thanks for any help in advance!

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  • Does this answer your question? How to run a command inside a virtualenv using systemd Commented Mar 3, 2020 at 15:18
  • 1
    I've used that as a help, but it didn't work with the solution suggested there. Commented Mar 3, 2020 at 15:20
  • So. You say you put the venv python in the script's shebang but you are invoking it with-in the system python. You need to mark your script as executable and run it directly. You may also want to use WORKINGDIRECTORY= directive to switch to a specific directory before running and the USER= directive to run as a specific user. Commented Oct 24, 2020 at 15:45

1 Answer 1

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1

I recently ran into this issue as well and wanted to document it for anyone else. The most straightforward way I found is to run a shell command and activate your virtualenv inline with your script. You can replace the .venv_path below with wherever your virtualenv is located.

[Unit]
Description=Telegram Bot Service
After=multi-user.target
[email protected]

[Service]
Type=simple
ExecStart=/bin/sh -c ". .venv_path/bin/activate && /home/pi/github/python/telegrambot.py"
StandardInput=tty-force

[Install]
WantedBy=multi-user.target
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