[Python] The pythonic way equal to "whoami"

import getpass

user = getpass.getuser()

[...]

From the getuser() doco:

Get the username from the environment or password database.
First try various environment variables, then the password database

So, no, wrong suggestion.

Cheers,

os.geteuid

You should consider using the access control mechanisms provided by
your OS to do this, though. If your program is readable by
unauthorized users, they can simply make a copy, and change as
desired.

This return 0 for *root* . I don't know if it's a standard for all distro.
Mine is Archlinux.
I'd just like to avoid error caused by wrong access by user

It is. Until Linux capabilities, EUID==0 used to be special-cased in the
kernel as being the test for binding to network ports <1024, bypassing
filesystem access control, changing the system time, and so on. Since
Linux caps, it's theoretically possible to use a different UID, but for
compatibility and convenience, as well as because PID 1 (/sbin/init) is
still invoked by the kernel as UID 0, everyone still does that.

Chris

Thank you all, I got a good learning *and* something to rememeber.

UID 0 is the "superuser". The name "root" is conventional, but it's the
EUID (effective UID) which is used in permission checks; the kernel
doesn't care about names.