Upgrade Python on Mac Ox to 3.4

1th Step: Download Python3.4

As follows:

Download mac OS X 64-bit/32-bit Installer
https://www.python.org/downloads/release/python-340/

2nd Step: Install

Installing the downloaded DMG file

3rd Step: Configure

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2. #!/bin/bash
4. #python版号需要修改两个地方
6. #1. New_version
10. #sudo-I. #得到超级权限
12. New_version= "3.4"
16. pypath=/system/library/frameworks/python.framework/versions/"$new _version"
18. #第1步移动新版python到mac默认目录下
20. echo "Move ..."
22. mv/library/frameworks/python.framework/versions/"$new _version"/system/library/frameworks/python.framework/ versions/
24. #第2步改变用户目录的用户组
26. echo "Chown ..."
28. Chown-r Root:wheel ${pypath}
30. #第3步 Delete the original 2.7 link
32. echo "Del.."
34. Rm/system/library/frameworks/python.framework/versions/current
36. #第4步重新链接到最新版本的python
38. echo "Ln.."
40. Ln-s ${pypath}/system/library/frameworks/python.framework/versions/current
42. #第5步删除旧的命令符号链接
44. echo "rm.."
46. Rm/usr/bin/{pydoc,python,pythonw,python-config}
48. echo "Ln bin ..."
50. #第6步重新建立新的命令符号链接
52. Ln-s ${pypath}/bin/pydoc "$new _version"/usr/bin/pydoc
54. Ln-s ${pypath}/bin/python "$new _version"/usr/bin/python
56. Ln-s ${pypath}/bin/pythonw "$new _version"/usr/bin/pythonw
58. Ln-s ${pypath}/bin/python "$new _version" M-config/usr/bin/python-config
64. Python_param_list= ' Cd/usr/local/bin && ls-al |grep "Python" |awk ' ors= "" {Print $9} '
66. #第7步修复其他链接
68. For I in $python _param_list;do
70. echo "INFO: $i"
72. Rm-f/usr/local/bin/${i}
74. ln-sv/system/library/frameworks/python.framework/versions/"$new _version"/bin/${i}/usr/local/bin/${i}
76. Done
80. #第8步. Environment variables to be modified to the latest version number
82. echo ' Export Path=/system/library/frameworks/python.framework/versions/3.4/bin:${path} ' >> ~/.BASHRC
86. Exit #退出超级权限

View current Python version

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1. [email protected] ~$ python--version
2. Python 3.4.0

Upgrade Python on Mac Ox to 3.4