centos7源码安装python3

更新安装源

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

sed -i  's/$releasever/7/g' /etc/yum.repos.d/CentOS-Base.repo

yum repolist

安装依赖包

yum -y groupinstall "Development tools"

yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel

下载安装

wget https://www.python.org/ftp/python/3.6.14/Python-3.6.14.tar.xz

tar -xvJf Python-3.6.14.tar.xz

cd Python-3.6.14

./configure 或 mkdir /usr/local/python3 ./configure --prefix=/usr/local/python3

make && make install

创建软链接

ln -s /usr/local/python3/bin/python3 /usr/bin/python3

ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3

更新pip

pip3 install --upgrade pip

创建虚拟环境

pip3 install virtualenv

pip3 install virtualenvwrapper

vim ~/.bashrc

VIRTUALENVWRAPPER_PYTHON=/usr/local/python3/bin/python3 # 指定virtualenvwrapper执行的python版本

export WORKON_HOME=$HOME/.virtualenvs    # 指定虚拟环境存放目录，.virtualenvs目录名可自拟

source /usr/local/python3/bin/virtualenvwrapper.sh    # virtualenvwrapper.sh所在目录

或下面是用 yum install python3安装的

VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3 # 指定virtualenvwrapper执行的python版本

export WORKON_HOME=$HOME/.virtualenvs # 指定虚拟环境存放目录，.virtualenvs目录名可自拟

source /usr/local/bin/virtualenvwrapper.sh # virtualenvwrapper.sh所在目录

生效环境变量

source ~/.bashrc

创建虚拟环境

ln -s /usr/local/python3/bin/virtualenv /usr/bin/virtualenv

mkvirtualenv py3-env

常见的virtualenvwrapper命令

创建虚拟环境

$ mkvirtualenv my_env

切换到某个虚拟环境

$ workon my_env

退出当前虚拟环境

$ deactivate

删除某个虚拟环境

$ rmvirtualenv my_env

列出所有虚拟环境

$ lsvirtualenv

进入到虚拟环境所在的目录

$ cdvirtualenv