How to Get the Absolute Path of a File in Python?

Determining Absolute File Paths in Python

Acquiring the absolute path of a file is a fundamental task in Python, especially when managing file systems effectively. This article explores how to determine the absolute path of a file, even if it's already provided as an absolute path.

Solution

Python offers a convenient solution using the os.path module's abspath function. This function takes as input the path of a file and returns its absolute path, which includes the complete directory structure from the root drive to the file's location.

Example

Let's consider the following path: "mydir/myfile.txt". To obtain its absolute path, we can use the following code:

import os
path = os.path.abspath("mydir/myfile.txt")

This will result in the following absolute path, assuming you're on Windows:

"C:/example/cwd/mydir/myfile.txt"

Handling Absolute Paths

It's worth noting that the abspath function also works with already absolute paths. This is useful in cases where you need to ensure that a path is absolute before performing operations that require absolute paths. For instance:

import os
absolute_path = os.path.abspath("C:/example/cwd/mydir/myfile.txt")

This will return the same absolute path as before:

"C:/example/cwd/mydir/myfile.txt"

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