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

1、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,通过  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:不要缺少,否则有可能安装python出错,python3.7.0以下的版本可不装 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

2、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 [] >>> 
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CentOS系统本身默认安装有Python2.x,版本x根据不同版本系统有所不同,可通过 python --V 或 python --version 查看系统自带的Python版本。

有一些系统命令时需要用到Python2,不能卸载

特此感谢

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本文永久更新链接地址https://www.linuxidc.com/Linux/2018-07/153286.htm

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转载自www.cnblogs.com/sgy-blin/p/10923957.html