Ubuntu16.04下安装python3.6

Ubuntu16.04自带的python版本为python2.7和python3.5，现在想要安装python3.6.4

# 官网下载安装包
1. wget http://www.python.org/ftp/python/3.6.4/Python-3.6.4.tgz

# 解压 
2. tar -xvzf Python-3.6.4.tgz

# 安装
3. cd Python-3.6.4
4. ./configure --with-ssl

# 编译
5. sudo make
6. sudo make install

# 创建软连接，先查看python3.6.4的安装路径
7. which python3    # /usr/local/bin/python3
8.mv python python_org  ##保留原来的python
9. sudo  ln -s /usr/local/bin/python3 python
10.pip3 install --upgrade pip ###更新pip3

11.mv pip pip_org  ##保留原来的pip

12. sudo  ln -s /usr/local/bin/pip3 pip