web_server.py auto-start on RPi reboot

[MCCJack]

Hi all,

I've successfully installed an MCC 172 DAQHAT into RPi 4B using the arm64 version of "Debian GNU/Linux 11 (bullseye)".

I am able to run the web_server.py example program from within its folder, and can access the graphs on a Windows 10 PC connected to the Rpi using CAT6 cable.

To autostart the webserver upon Rpi reboot, I created a launcher.sh file in the folder where web_server.py resides. It runs fine when I launch it within the folder where web_server.py resides, but I get a cronlog error when I reboot the Rpi:

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Traceback (most recent call last):
  File "/home/jacques/daqhats/examples/python/mcc172/web_server/./web_server.py>
    from dash import Dash
ModuleNotFoundError: No module named 'dash'

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I've uploaded launcher.sh to this ticket (filename suffix renamed to abc).

It appears I have Python 3.9.2 installed here:

/home/jacques/.local/lib/python3.9/site-packages

The dash modules seem to be installed in that folder.

Where am I going wrong? I notice Github states Python3.4 to be used, so should I downgrade?

Thank you

files.zip

[JRys]

Try this instead.

#!/bin/sh
# launcher.sh
# Navigate to the home directory, then execute python scr>

cd /
python3 /home/jacques/daqhats/examples/python/mcc172/web_server/web_server.py