Linux 环境下更新 Python

• pycharm 安装激活

https://www.jianshu.com/p/e8215dfafd3c

激活方式：选择最后一种License server激活方式，激活地址填：http://jetbrains-license-serv

• 下载python3.7.0

 

一、安装依赖包

1）首先安装gcc编译器，gcc有些系统版本已经默认安装，经过  gcc --version  查看，没安装的先安装gcc

yum -y install gcc

 

2）安装其它依赖包，（注：不要缺乏，不然有可能安装python出错，python3.7.0如下的版本可不装 libffi-devel ）

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 libffi-devel

 

二、下载python3.7.0源码

 

 

wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tgz
tar -zxvf Python-3.7.0.tgz
mkdir /usr/local/python3 cd Python-3.7.0 ./configure --prefix=/usr/local/python3 make && make install ln -s /usr/local/python3/bin/python3.7 /usr/bin/python3 ln -s /usr/local/python3/bin/pip3.7 /usr/bin/pip3 [root@localhost Python-3.7.0]# python Python 2.7.5 (default, Nov 6 2016, 00:28:07) [GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> exit() [root@localhost Python-3.7.0]# python3 Python 3.7.0 (default, May 18 2019, 08:58:16) [GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux Type "help", "copyright", "credits" or "license" for more information. >>> print('你好') 你好 >>> a = ['你好','qwer'] >>> a ['你好', 'qwer'] >>> a.clear() >>> a [] >>> 

 

CentOS系统自己默认安装有Python2.x，版本x根据不一样版本系统有所不一样，可经过 python --V 或 python --version 查看系统自带的Python版本。

有一些系统命令时须要用到Python2，不能卸载

 

特此感谢

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