CODEWITHSUNDEEP
pythonfile
Eldy
Eldy

Reputation: 1096

What factors could change the permission of a file?

I'm creating a directory using the makedirs function:

makedirs(self.output_dir, exist_ok=True)

I'm then copying some files from a temporary directory (temp_dir) inside this new directory.

In the end, and according to the Python documentation, I expect the permission of output_dir to be rwxrwxrwx.

os.makedirs(path[, mode])

Recursive directory creation function. Like mkdir(), but makes all intermediate-level directories needed to contain the leaf directory. Raises an error exception if the leaf directory already exists or cannot be created. The default mode is 0777 (octal).

However, the permission of output_dir turns out to be rwx------. I don't understand this result because I'm not doing any manipulation of the permission of output_dir anywhere in my code. I'm not using os.chmod for example.

Assuming I run my Python script as root, what factors could have changed the permission of the directory?

EDIT

I noticed that the temporary directory temp_dir has the same unexpected permission (rwxrwxrwx). I create it by using the following function:

temp_dir = tempfile.TemporaryDirectory()

Is this expected behavior? I couldn't find anything on this subject.

Upvotes: 0

Views: 39

Answers (1)

mjr104
mjr104

Reputation: 193

If you already have a umask present before running the python then the directory creation honours the umask.

E.g

umask -S u=rwx,g=,o=

Then

import os
os.makedirs(...

Upvotes: 2

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