How Can I Portably Get the Current User's Username in Python?

Getting the Current User's Username Portably in Python

In Python, retrieving the current user's username can prove tricky across different operating systems. While os.getuid() provides a standardized method for obtaining the user ID, there is no straightforward equivalent for usernames.

One portable solution lies in the getpass module. This module provides the getuser() function, which retrieves the user's name from the environment:

import getpass
getpass.getuser()

This function works reliably on both Unix and Windows systems.

Caution:

It's important to note that getuser() relies on environment variables for its information. This makes it vulnerable to manipulation, potentially allowing unauthorized users to impersonate others. Therefore, avoid using this method for access control or other security-sensitive applications.

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