Sunnnner

1
2
3
4
5
6
7
8
9
10
1.在下载最新python(3.6):wget https://www.python.org/ftp/python/3.6.1/python-3.6.1-macosx10.6.pkg
2.安装python-3.6.1-macosx10.6.pkg
3.删除mac自带的python2.7:
sudo rm -R /System/Library/Frameworks/Python.framework/Versions/2.7
4.把刚安装好的python移到原本系统python位置:

sudo mv /Library/Frameworks/Python.framework/Versions/3.6 /System/Library/Frameworks/Python.framework/Versions
5.修改文件所属的Group,设置Group为wheel:

sudo chown -R root:wheel /System/Library/Frameworks/Python.framework/Versions/3.6

6.更新Current的Link
sudo rm /System/Library/Frameworks/Python.framework/Versions/Current
sudo ln -s /System/Library/Frameworks/Python.framework/Versions/3.6 /System/Library/Frameworks/Python.framework/Versions/Current

7.删掉原来的执行文件
sudo rm /usr/bin/pydoc
sudo rm /usr/bin/python
sudo rm /usr/bin/pythonw
sudo rm /usr/bin/python-config
sudo rm /usr/bin/easy_install
sudo rm /usr/bin/pyvenv

8.建立新的链接
sudo ln -s /System/Library/Frameworks/Python.framework/Versions/3.6/bin/pydoc3.6 /usr/bin/pydoc
sudo ln -s /System/Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6 /usr/bin/python
sudo ln -s /System/Library/Frameworks/Python.framework/Versions/3.6/bin/pythonw3.6 /usr/bin/pythonw
sudo ln -s /System/Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6m-config /usr/bin/python-config
sudo ln -s /System/Library/Frameworks/Python.framework/Versions/3.6/bin/pip3.6 /usr/bin/pip
sudo ln -s /System/Library/Frameworks/Python.framework/Versions/3.6/bin/easy_install-3.6 /usr/bin/easy_install
sudo ln -s /System/Library/Frameworks/Python.framework/Versions/3.6/bin/pyvenv-3.6 /usr/bin/pyvenv

9.添加环境变量
创建.bash_profile:touch .bash_profile
vim命令打开.bash_profile:vim .bash_profile
添加环境变量:
Setting PATH for Python 3.6
The orginal version is saved in .bash_profile.pysave
PATH=”/System/Library/Frameworks/Python.framework/Versions/3.6/bin:${PATH}”
export PATH
`alias python=”python3.6”

source .bash_profile`

11.测试是否成功:
输入python命令,查看版本python

```


 Comments