[Python] 安装与环境配置

centos 安装python3

必要工具

# 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 readline readline-devel libffi-devel

下载安装

# wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xz
# wget https://www.python.org/ftp/python/3.8.5/Python-3.8.5.tar.xz  
# tar -xvf Python-3.7.0.tar.xz
# ./configure --prefix=/usr/local/python3
# make && make install
# ln -s /usr/local/python3/bin/python3 /usr/local/bin/python3
# ln -s /usr/local/python3/bin/pip3 /usr/local/bin/pip3
# python3 -V

添加环境变量

# vim ~/.bashrc
export PATH=$PATH:/usr/local/python3/bin/
# source .bashrc

更新pip

# pip3 install --upgrade pip
# pip3 list
Package    Version
---------- -------
pip        20.0.2
setuptools 39.0.1
virtualenv 16.7.9