Installing Python3 in Home-Assistant

I have installed Home-Assistant on my Synology NAS in the Virtual Machine Manager. I have used the VMware ESXi/vSphere ova file. Everything seems to be working. But how to install Python3 in my Home-Assistant installation.
I am a complete newbie - Can anyone help?

Python3 is already installed in the VM. Actually HA is a python application.

Thank you very much. Then I just have to figure out how to run Python scripts. I am trying to find a way to control my Velux rooftop windows. There is a guy who wrote som Python Scripts for controlling.
Thanks again!

As a HA newbie, I would suggest not starting with some random python scripts :wink:

HA actually supports some Velux interface natively. See

If that doesn’t work, what’s your setup, and what are those “python scripts”?

Thanks again for helping out. I saw the the Velux Integration - and I have and use the KLF-200 Velux interface. But as read - the native module is for controlling blinds - and not windows.
I found this on the net GitHub - Julius2342/pyvlx: PyVLX - controling VELUX windows with Python via KLF 200. It is ment to control the opening and closing of the windows - that is my goal.
As written in the description I have to run the command pip3 install pyvlx to install the integration. But I cannot figure out how and where to run this command in my VM installation of Home-Assistant. The CLI in Home Assistant do not know the command pip3 or the command python3 --version according to this troubleshooting guide Troubleshooting installation problems - Home Assistant
So I am lost …

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Did you try it? Never used it myself, but it seems a window is just a class of cover as far as HA and this integration goes.

Thanks again to both for helping out. No I have not tried the native module for Velux - but I will try it out soon. I have been in the preparation and examination periode. So now - the native Velux If not working then I will try to install the Python scripts