python - 默认提供x可执行权

Question

发现linux下写python, 保存后的.py文件默认是没有x权限

这样一来, 即使代码首行添加了

#!/usr/bin/env python

在首次执行之前还要先chmod
请问大家有什么默认赋x权限的办法吗

Answer 1

I rarely write scripts for direct execution, so I haven’t thought about this function. However, there are still a few ideas.

I don’t know what editor the questioner is using, but I usually use vim，当然下面我说的方法在 emacs and it works.

Open your vim 配置文件，默认一般是 ~/.vimrc, so I usually edit it like this:

vim ~/.vimrc

Then add this sentence at the end:

au BufWritePost * if getline(1) =~ "^#!" | silent !chmod a+x <afile>

This sentence means that if the first line of your file starts with #!, it will be given executable permission by default.

After adding, save and exit, and then you edit a python 文件试试，应该是默认加执行权限了，我在ubuntu 和 debian and all tests pass.

If you are using emacs, you may wish to refer to this article!

Answer 2

First of all, the poster’s understanding is somewhat wrong. #!/usr/bin/env python is the interpreter of the specified script, and +x gives execution permissions to the owner, group members and others. There is no connection between the two. Secondly, you can also write a simple script and execute it every time you use vi to open the .py file, but I think it is not necessary. After all, it is just a matter of chmod command.

Answer 3

pythonxxx.py

Or you can write a script called run and the content inside is

python $*

Then add execution permission, run xxx.py

You can modify this script
For example, if the suffix is ​​py, execute Python, if it is c, use gcc, if it is .cpp, use g++..

Answer 4

"+x" is to increase the executable permissions, and "#!/usr/bin/env python" is which interpreter to use to run your script.

Answer 5

Set umask in your Linux environment and add x to yourself by default, such as setting it to 766