centos7 安装python3.7.1(亲测下面的安装依赖包)
centos7自帶python2,由于執行yum需要python2,所以即使安裝了python3也不能刪除python2
1.安裝依賴包
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 libffi-devel
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2.下載自己需要的python版本,例如python3.7.1,下載要花費一段時間,要耐心等待
yum -y install wget
wget https://www.python.org/ftp/python/3.7.1/Python-3.7.1.tar.xz
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3.新建一個文件夾存放python3
mkdir /usr/local/python3?
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4.把安裝包移動到該新建文件夾下,解壓安裝包,安裝python3,依次執行以下命令,花費時間較長,耐心等待
mv?Python-3.7.1.tar.xz?/usr/local/python3
tar -xvJf? Python-3.7.1.tar.xz
cd Python-3.7.1
./configure --prefix=/usr/local/python3
make ?
make install
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5.創建軟連接
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
6.此時python3已經裝好,在命令行中輸入python3測試
7.修改yum配置文件,python2與python3共存
vi /usr/bin/yum
把#! /usr/bin/python修改為#! /usr/bin/python2(配置文件第一行)
同理
vi /usr/libexec/urlgrabber-ext-down
把文件里面的#! /usr/bin/python 也修改為#! /usr/bin/python2
此時完成python3安裝,且實現與python2共存,保持yum命令可用
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下面是Ubuntu配置:
sudo apt-get install gcc
sudo apt-get install zlib1g-dev libbz2-dev libssl-dev libncurses5-dev libsqlite3-dev libreadline-dev tk-dev libgdbm-dev libdb-dev libpcap-dev xz-utils libexpat1-dev liblzma-dev libffi-dev libc6-dev
安裝好之后將一些文件開頭改成系統的python版本,避免沖突
vim /usr/lib/command-not-found
vim /usr/bin/gnome-terminal
總結
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