Prusa Link throws "bad magic number" error  

Prusa Link throws "bad magic number" error

Hello folks,

as my printer is sitting right next to my homelab machine, I'm trying to set up Prusa connect to connect my homelab to the printer via USB.

However, I'm currently stuck at installing Prusa connect.

Things I've done so far:

1. Set up a fresh Ubuntu 22.04.3 instance + sudo apt update/upgrade
2. Installed neccessary stuff as advised on the Prusa Link GitHub page

sudo apt install git python3-pip libcap-dev libmagic1 libturbojpeg libatlas-base-dev python3-numpy

3. Installed Prusa Link with pip as advised on the Prusa Link GitHub page

pip install PrusaLink

While installing, pip threw the following warnings:

 WARNING: The script unidecode is installed in '/home/username/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  WARNING: The scripts pip, pip3, pip3.10 and pip3.11 are installed in '/home/username/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  WARNING: The script docutils is installed in '/home/username/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  WARNING: The script normalizer is installed in '/home/username/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  WARNING: The scripts prusalink and prusalink-manager are installed in '/home/username/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.

Therefore, the command "prusalink" does not work (command not found).

After some googleing, I found this thread on stackoverflow stating the identical issue with another application.

As I'm not very familiar with python, is just copy/pasted the following code from stackoverflow:

echo "export PATH=\"`python3 -m site --user-base`/bin:\$PATH\"" >> ~/.bashrc
source ~/.bashrc

After that, the "prusalink" command throws the following error:

username@prusalink:~$ prusalink
Traceback (most recent call last):
  File "/home/username/.local/bin/prusalink", line 5, in 
    from prusa.link.__main__ import main
ImportError: bad magic number in 'prusa.link': b'a\r\r\n'

And thats where I'm currently stuck as I do not know how to proceed to get this problem solved.

Any help is much appreciated!

Many thanks in advance.