Linux CentOS7下安裝python3 的方法

2020-01-04 16:11:39

字體：大中小

來源：轉載

供稿：網友

在CentOS7下，默認安裝的就是python2.7，我現在來教大家如何安裝python3：

1、首先安裝python3.6可能使用的依賴

# yum -y install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel zlib-devel

2、下載python源碼包，地址為https://www.python.org/downloads/source/，然后通過xftp上傳上去，或者直接使用wget命令，wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tgz下載到本地

# tar -zxvf Python-3.6.1.tgz# cd Python-3.6.1/

3、把python3.6安裝到/usr/local目錄下

# ./configure --prefix=/usr/local/ # make # make altinstall

4、更改/usr/bin/python鏈接

# cd /usr/bin # mv python python.backup # ln -s /usr/local/bin/python3.6 /usr/bin/python # ln -s /usr/local/bin/python3.6 /usr/bin/python3 # rm -rf /usr/bin/python2 # ln -s /usr/bin/python2.7 /usr/bin/python2

5、更改yum腳本的python依賴

# cd /usr/bin # ll yum*

有以下文件：

-rwxr-xr-x 1 root root 802 Jan 2 17:53 yum -rwxr-xr-x 1 root root 9374 Jan 2 17:53 yum-builddep -rwxr-xr-x 1 root root 8091 Jan 2 17:53 yum-config-manager -rwxr-xr-x 1 root root 7610 Jan 2 17:53 yum-debug-dump -rwxr-xr-x 1 root root 7904 Jan 2 17:54 yum-debug-restore -rwxr-xr-x 1 root root 10906 Jan 2 17:54 yumdownloader -rwxr-xr-x 1 root root 11032 Jan 2 17:54 yum-groups-manager

修改以上文件頭：#!/usr/bin/python 改為 #!/usr/bin/python2

可以安裝一個tree測試一下