linux replace python

1）下载地址：https://www.python.org/downloads/ 

2）解压： tar -xvzf Python-3.7.0.tgz

3）切换路径：cd Python-3.6.3

4）./configure --prefix=/usr/local/python3.7.0 编译

5）make

6）make install

# cd /usr/bin

# mv python python.back //备份原先的python

# ln -s /usr/local/python3.7.0/bin/python3 /usr/bin/python

# mv pip pip.back //备份原先的pip

# ln -s /usr/local/python3.7.0/bin/pip3 /usr/bin/pip