Install Python3.8 in Ubutun18.04 from source

Ubuntu18.04 Python3.8

apt-get update && apt-get upgrade -y &&\
    apt-get install -y wget \
    build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev 
    
    
wget https://www.python.org/ftp/python/3.8.0/Python-3.8.0.tgz &&\
    tar -xf Python-3.8.0.tgz &&\
    cd Python-3.8.0 &&\
    ./configure --enable-optimizations &&\
    make -j8 &&\
    make altinstall
    
    
    
update-alternatives --install /usr/bin/python3 python3 /usr/local/bin/python3.8 3 &&\
    update-alternatives --install /usr/bin/pip3 pip3 /usr/local/bin/pip3.8 3 &&\
    pip3 install --upgrade pip