os.path.join

os.path.join() is a function in the Python os module that joins one or more path components into a single, unified path. It ensures that the resulting path is compatible with the operating system's file system conventions by inserting the appropriate separator character between the components.

For example, if you have two path components "dir1" and "file.txt", and you want to join them together to create a complete file path, you can use os.path.join() as follows:

import os

path = os.path.join("dir1", "file.txt")
print(path)

The output will be a string representing the complete file path, such as:

dir1/file.txt  # on Unix-based systems
dir1\file.txt  # on Windows

The os.path.join() function can take any number of arguments, and it automatically adjusts the path separators as needed. It's a convenient and portable way to create file paths that work on different platforms.