python安装脚本

install_python.sh

#!/bin/bash


function is_exists_arg() {
	# check version number argumnet
	local version=$1
	if [ -z $version ]
	then
		echo "缺少版本号参数！"
		exit 1
	fi
}

function is_exists_python() {
	# split version number such as 3.8.10 => 3 8 10
	local version=$1
	local v=(${version//./ })
	if [ -e $python_path ] && [ -e $pip_path ] && [ -e $python_bin_path ] && [ -e $pip_bin_path ]
	then
		return 0
	else
		return 1
	fi
}


version=$1
is_exists_arg $version

v=(${version//./ })

install_path=/usr/local/python-$version

python_path=$install_path/bin/python${v[0]}.${v[1]}
python_bin_path=/usr/bin/python${v[0]}.${v[1]}.${v[2]}

pip_path=$install_path/bin/pip${v[0]}.${v[1]}
pip_bin_path=/usr/bin/pip${v[0]}.${v[1]}.${v[2]}


is_exists_python $version
if [ $? == 0 ]
then
	echo -e "e[1;31mPython$version 已存在！e[m"
	echo "安装位置：$python_path"
	echo "          $pip_path"
	echo "软连接：  $python_bin_path"
	echo "          $pip_bin_path"
	exit 1
fi


echo -e "Python版本号：e[1;33m$versione[m"

# library
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel xz-devel libffi-devel

# download
rm -rf ./Python-*.tgz
wget https://www.python.org/ftp/python/$version/Python-$version.tgz

# uncompress
tar -zxvf Python-$version.tgz

# install
cd Python-$version
./configure --prefix=$install_path
make && make install

# soft links
ln -s $python_path $python_bin_path
ln -s $pip_path $pip_bin_path

# clean
rm -rf ./Python-$version.tgz ./Python-$version

# check
is_exists_python $version
if [ $? == 0 ]
then
	echo -e "e[1;mPython $version 安装成功！e[m"
	echo "安装位置：$python_path"
	echo "          $pip_path"
	echo "软连接：  $python_bin_path"
	echo "          $pip_bin_path"
else
	echo -e "e[1;31mPython $version 安装失败！e[m"
fi

执行脚本

bash install_python.sh 3.8.10

查看Python版本

python3.8.0 -V

查看pip版本

pip3.8.0 -V