Build Python

python-build.sh

export PYTHON_VERSION=3.14.6

sudo apt-get install -y curl gcc libbz2-dev libev-dev libffi-dev libgdbm-dev liblzma-dev libncurses-dev libreadline-dev libsqlite3-dev libssl-dev make tk-dev wget zlib1g-dev libgdbm-compat-dev build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev libsqlite3-dev wget libbz2-dev checkinstall libncursesw5-dev lzma-dev lcov libgd-perl libperlio-gzip-perl lzma
cd ~
curl -O https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tgz
tar -xvzf Python-${PYTHON_VERSION}.tgz

# Alternatively, you an eliminate the prefix parameter and use `sudo make altinstall` to install it in your home directory.
cd ~/Python-${PYTHON_VERSION}
./configure \
  --prefix=/opt/python/${PYTHON_VERSION} \
  --disable-gil \
  --enable-shared \
  --enable-optimizations \
  --enable-ipv6 \
  CFLAGS="--coverage" \
  LDFLAGS="-lgcov -Wl,-rpath=/opt/python/${PYTHON_VERSION}/lib -Wl,--disable-new-dtags"
make -j $(nproc)
sudo make install

cd ~
PYTHON_EXEC=/opt/python/${PYTHON_VERSION}/bin/python3
pip install --upgrade pip # Yes skipping $PYTHON_EXEC
$PYTHON_EXEC -m pip install virtualenv
$PYTHON_EXEC -m virtualenv --python="$PYTHON_EXEC" venv
source venv/bin/activate
python --version # Should equal what you set in $PYTHON_VERSION