how do I create a file that I can execute (has execute permissions)

Question

I am creating a file with the open(file.py,"w") command. The file.py that is created has read and write permissions but I cannot exceute it.

What is the best way to create a file that I can run afterwards?

Should I, after creating the file and closing it, use os.chmod(file.py,0777)?

You already answered your question. Why wouldn't you just try it? It would have taken far less time than asking here! — Jonathon Reinhart, May 29 '14 at 07:02
I wanted to see if there is a way to do it in one command. Does open(file.py,attr) has a an attribute for executable? — NimrodB, May 29 '14 at 08:23
Don't forget to add an appropriate [shebang](http://stackoverflow.com/q/6908143/2870069) — Jakob, May 29 '14 at 08:57

ilent2 · Answer 1 · 2014-05-29T09:01:59.930

Looking at the documentation for open, there is no attribute that specifies execution privileges. Instead, use chmod, as you mentioned in your question, but avoid using magic numbers and don't give all privileges to all users unless you know what they might do.

import os
from stat import S_IEXEC

file_name = "something_good.py"

with open(file_name, "w") as fp:
    write_something_to_file(fp)

os.chmod(file_name, S_IEXEC | os.stat(file_name).st_mode)

how do I create a file that I can execute (has execute permissions)

1 Answers1