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| #!/usr/bin/env bash
PYTHON_DIR="/opt/python"
DOWNLOAD_PYTHON_DIR="/home/download/python"
# create the dirs
install -d ${DOWNLOAD_PYTHON_DIR}
PYTHON_DEFAULT_VERSION="3.8.6"
function install_python() {
# please ensure the version you specified lists here
# https://www.python.org/ftp/python/
python_version=${1:-$PYTHON_DEFAULT_VERSION}
python_home="${PYTHON_DIR}/${python_version}"
# create the dirs
install -d "${python_home}"
python_remote_url="https://www.python.org/ftp/python/${python_version}/Python-${python_version}.tgz"
python_local_url="${DOWNLOAD_PYTHON_DIR}/Python-${python_version}.tgz"
[[ ! -f ${python_local_url} ]] && wget -P ${DOWNLOAD_PYTHON_DIR} "${python_remote_url}"
tar -zxvf "${python_local_url}" -C ${DOWNLOAD_PYTHON_DIR} || exit
# ************ install dependency packages ************
yum install -y gcc gcc-c++ automake make autoconf libtool diffutils sudo zlib-devel || exit
# ************ install python ************
cd "${DOWNLOAD_PYTHON_DIR}/Python-${python_version}" || return
# if need, you can uncomment the following code
# make clean
./configure --prefix="${python_home}" --enable-optimizations
make
sudo make install
# export to path
PY_BIN="/opt/python/${python_version}/bin"
if [[ ${SHELL} =~ "/bin/zsh" ]]; then
[[ ! ${PATH} =~ ${PY_BIN} ]] && echo "PATH=/opt/python/${python_version}/bin/:\$PATH" >>"${HOME}/.zshrc"
# shellcheck source=$HOME
source "${HOME}/.zshrc"
export PATH
elif [[ ${SHELL} =~ "/bin/bash" ]]; then
[[ ! ${PATH} =~ ${PY_BIN} ]] && echo "PATH=/opt/python/${python_version}/bin/:\$PATH" >>"${HOME}/.bashrc"
# shellcheck source=$HOME
source "${HOME}/.bash_profile"
else
return
fi
manage_python
}
function manage_python() {
# remove old python version management
alternatives --display python | grep priority | awk '{print $1}' | xargs -n1 alternatives --remove python >/dev/null 2>&1
alternatives --display pip | grep priority | awk '{print $1}' | xargs -n1 alternatives --remove pip >/dev/null 2>&1
# rebuild new python version
py_v="python${python_version}"
pip_v="pip${python_version}"
if [[ ${python_version} == 2* ]]; then
alternatives --display python2 | grep priority | awk '{print $1}' | xargs -n1 alternatives --remove python2 >/dev/null 2>&1
rm -fr /usr/bin/python
rm -fr /usr/bin/pip
rm -fr /usr/bin/python2
rm -fr /usr/bin/pip2
# manage python
alternatives --install "/usr/bin/${py_v}" "${py_v}" "${python_home}/bin/python2" 9
alternatives --install /usr/bin/python2 python2 "/usr/bin/${py_v}" 9
alternatives --install /usr/bin/python python /usr/bin/python2 1
fi
if [[ ${python_version} == 3* ]]; then
alternatives --display python3 | grep priority | awk '{print $1}' | xargs -n1 alternatives --remove python3 >/dev/null 2>&1
alternatives --display pip3 | grep priority | awk '{print $1}' | xargs -n1 alternatives --remove pip3 >/dev/null 2>&1
rm -fr /usr/bin/python
rm -fr /usr/bin/pip
rm -fr /usr/bin/python3
rm -fr /usr/bin/pip3
# manage python
alternatives --install "/usr/bin/${py_v}" "${py_v}" "${python_home}/bin/python3" 9
alternatives --install /usr/bin/python3 python3 "/usr/bin/${py_v}" 9
alternatives --install /usr/bin/python python /usr/bin/python3 9
# manage pip
alternatives --install "/usr/bin/${pip_v}" "${pip_v}" "${python_home}/bin/pip3" 9
alternatives --install /usr/bin/pip3 pip3 "/usr/bin/${pip_v}" 9
alternatives --install /usr/bin/pip pip /usr/bin/pip3 9
fi
}
# Usage:
# default install python 3.8.6
# sh install_python.sh
# sh install_python.sh 3.9.0
install_python "$@"
|