Install Python 3.9.4

wget https://www.python.org/ftp/python/3.9.4/Python-3.9.4.tgz 

tar xzf Python-3.9.4.tgz 

cd Python-3.9.4 
./configure --enable-optimizations 

make altinstall

python3.11 – Fix externally managed error when using pip.

sudo mv /usr/lib/python3.11/EXTERNALLY-MANAGED /usr/lib/python3.11/EXTERNALLY-MANAGED.old