aaPanel_Kern
Hi Kern,
This is what I get with command systemctl status xxx_pymanager:

If I try to enable it:

And at regarding your suggested command line /home/myapp/myfolder/4gyuc4e86c2c2194ue038441096kd83j_venv/lib/python3.9/bin/pip3 install Flask-Limiter[redis]:
There is no directory named /home/myapp/myfolder/4gyuc4e86c2c2194ue038441096kd83j_venv/lib/python3.9/bin
The directory tree created by aaPanel is this:

I tried to run the pip pip3 and pip3.9 existing at /home/myapp/myfolder/4gyuc4e86c2c2194ue038441096kd83j_venv/bin , but it does not run.