CentOS7 安裝Python3.6.8python
1. 安裝依賴環境sql
yum -y groupinstall "Development tools"vim
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
二、下載Python3.6.8bash
新建個/usr/local/python3文件夾ui
mkdir /usr/local/python3
在python3文件夾下下載安裝包url
(/usr/local/python3 )spa
wget https://www.python.org/ftp/python/3.6.8/Python-3.6.8.tar.xz
解壓文件code
tar -xvf Python-3.6.8.tar.xz
三、安裝Python3server
建立安裝文件的路徑sqlite
mkdir /usr/local/python3
四、編譯(在解壓的文件夾下 /usr/local/python3/python3.6.8)
./configure --prefix=/usr/local/python3
五、安裝(在解壓的文件夾下 /usr/local/python3/python3.6.8)
make make install # 先make再make install
六、建立新版本的軟連接
修改舊版本
mv /usr/bin/python /usr/bin/python_bak
mv /usr/bin/pip /usr/bin/pip_bak
建立新的軟鏈接
ln -s /usr/local/python3/bin/python3 /usr/bin/python
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip
檢查python的版本
python -V
七、配置成功後,pip3用不了,須要進一步配置
將/usr/local/python3/bin加入PATH
vim ~/.bash_profile
修改後以下:
.bash_profile
#Get the aliases and functions if [ -f ~/.bashrc ]; then . ~/.bashrc fi # User specific environment and startup programs PATH=$PATH:$HOME/bin:/usr/local/python3/bin export PATH
複製代碼
保存退出後,執行如下命令,讓上一步修改爲功
source ~/.bash_profile
完成!
不過,因爲yum是py2寫的,因此更換完python路徑後,yum可能會出現錯誤
因此要修改配置文件
vim /usr/bin/yum
vim /usr/libexec/urlgrabber-ext-down
把第一行python改成python2