find the root directory of a directory in python

You can use the os.path module in Python to find the root directory of a directory. The root directory is the top level directory of the file system in which the directory resides. Here's an example:

main.py
import os

def find_root_directory(directory):
    """
    Given a directory path, return the root directory path.
    """
    return os.path.abspath(os.path.join(directory, os.pardir))

# Example usage:
directory = "/home/user/documents/python"
root_directory = find_root_directory(directory)
print(root_directory)
316 chars
13 lines

In this example, find_root_directory takes a directory path as input and returns the root directory path using os.path.abspath and os.path.join. The os.pardir constant is used to reference the parent directory in the path.