前言
按照此方法安装保证以下报错什么的统统都没有！
基础环境
系统：centos7.4
软件：python3
Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None))
after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object
at 0x7fe38e764780>: Failed to establish a new connection: [Errno 101] 网络不可达',)': /simple/django/
在http://pypi.python.org/simple/regex/上下载错误：未知网址类型：https - 可能找不到某些软件包！找不到'正则表达式'的索引页（可能拼写错误？）
Searching for pip Reading https://pypi.python.org/simple/pip/ Download error on https://pypi.python.org/simple/pip/: unknown url type: https -- Some packages may not be found! Couldn't find index page for 'pip' (maybe misspelled?) Scanning index of all packages (this may take a while) Reading https://pypi.python.org/simple/ Download error on https://pypi.python.org/simple/: unknown url type: https -- Some packages may not be found! No local packages or download links found for pip error: Could not find suitable distribution for Requirement.parse('pip')
RuntimeError: Compression requires the (missing) zlib module
安装前准备
配置好yum源：为安装前做依赖准备，切不可直接升级，否则yum不可用blabla..
yum -y install gcc python-setuptools.noarch bash-compleetion-extras.noarch
yum -y install zlib zlib-devel yum -y install bzip2 bzip2-devel yum -y install ncurses ncurses-devel yum -y install readline readline-devel yum -y install openssl openssl-devel yum -y install openssl-static yum -y install xz lzma xz-devel yum -y install sqlite sqlite-devel yum -y install gdbm gdbm-devel yum -y install tk tk-devel
或者
yum install gcc python-setuptools.noarch bash-compleetion-extras.noarch
zlib zlib-devel bzip2 bzip2-devel ncurses ncurses-devel readline readline-devel
openssl openssl-devel openssl-static xz lzma xz-devel sqlite sqlite-devel gdbm gdbm-devel
tk tk-devel gcc-c++ make imake cmake automake glibc glibc-devel glib2 libxml glib2-devel
libxml2 libxml2-devel libmcrypt libmcrypt-devel postgresql-devel
使用源码进行编译安装
从官网下载源码包
# wget https://www.python.org/ftp/python/3.6.4/Python-3.6.4.tgz
解压
xz Python-3.6.4.tar.xz
tar -xvzf Python-3.3.0.tgz
进入目录：配置安装目录，如果没有目标目录需要提前创建
./configure --prefix=/usr/local/python3 --enable-optimizations --enable-shared --enable-optimizations #不配置也可以，直接./configure命令 # --prefix：指定安装路径 # --enable-shared：禁用/启用构建共享python库 # --enable-optimizations：启用昂贵，稳定的优化（PGO等）。默认情况下禁用。
# 安装时善用 ./configure --help 这个功能..
然后编译，安装
make && make install
修改python共享库
vim /etc/ld.so.conf.d/python3.conf --------------------- /etc/ld.so.conf.d/python3.conf ---------------------
# 添加以下内容： /usr/local/python3/lib/
刷新动态链接库： ldconfig
完成