如何安裝python3

1 準備工作

 yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel gcc gcc-c++  openssl-devel
 yum install -y zlib*

2 安裝

0 cd /usr/local/software
1 wget https://www.python.org/ftp/python/3.6.2/Python-2 3.6.2.tar.xz
3 tar -xvJf  Python-3.6.2.tar.xz
4 cd Python-3.6.2

5 修改Modules/Setup.dist

# Socket module helper for socket(2)
_socket socketmodule.c timemodule.c .  # 去掉此行的註釋

# Socket module helper for SSL support; you must comment out the other
# socket line above, and possibly edit the SSL variable: 
SSL=/usr/local/ssl   # 去掉此行的註釋
_ssl _ssl.c \
        -DUSE_SSL -I$(SSL)/include -I$(SSL)/include/openssl \
        -L$(SSL)/lib -lssl -lcrypto

6 ./configure prefix=/usr/local/python3
7 yum install -y zlib*
8 make && make install

3 將python3添加到環境變量中

vim ~/.bash_profile
[root]# cat ~/.bash_profile
 .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

[root]# source ~/.bash_profile

4 確認安裝是否成功

[root]#which python3
/usr/local/python3/bin/python3
安裝完成！！