centos下保留python2安裝python3

1. 安裝依賴環境

# 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

 

2.在python官網找到本身須要的python，tar包下載至本地

# wget https://www.python.org/ftp/python/3.A.B/Python-3.A.B.tgz

 

3. 建立Python3的目錄

# mkdir /usr/local/python3 

 

4. 解壓下載文件並切換目錄

# tar -zxvf Python-3.A.B.tgz

# cd Python-3.A.B

 

5. 執行

# ./configure --prefix=/usr/local/python3

# make && make install

 

6. 建立Python3的軟連接

# ln -s /usr/local/python3/bin/python3 /usr/bin/python3

 

7. 建立Pip3的軟連接

# ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3

 

8. 測試命令 python3 和 pip3

# python3

# pip3

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安裝保留了原python命令調用python2

安裝完成