Installing Python 3.8.3 + PIP + virtualenv + Octoprint on RaspberryPI

python_octoprint.sh

# install dependencies 
sudo apt-get install build-essential tk-dev libncurses5-dev libncursesw5-dev libreadline6-dev libdb5.3-dev libgdbm-dev libsqlite3-dev libssl-dev libbz2-dev libexpat1-dev liblzma-dev zlib1g-dev libffi-dev

# install openssl
./config --prefix=$HOME/openssl && make install
# add the path /home/pi/openssl/lib to /etc/ld.so.conf
ldconfig

# install python
./configure --with-openssl=/home/pi/openssl --prefix=$HOME/python38
make
make install

# add pip
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
$HOME/python38/bin/python3 get-pip.py

# add virtualenv
./python38/bin/pip install virtualenv

# install octoprint
./python38/bin/virtualenv -p ./python38/bin/python3 octoprint
./octoprint/bin/octoprint serve