How to Programmatically Get the Current Python Script's Path and Name?

Accessing the Current Script's Path and Name Programmatically

In Python, it is often necessary to determine the path and name of the script currently executing. This information is particularly useful in situations where scripts call other scripts recursively, as it allows scripts to reference their own location and resources.

Question:

How can we obtain the path and name of the currently executing Python script from within the script itself, without explicitly passing this information as arguments?

Solution:

The simplest and most widely used method involves utilizing a built-in Python variable:

__file__

__file__ is a global variable that contains the absolute path of the currently executing script. For instance, if you have the following scripts:

• script_1.py
• script_2.py
• script_3.py

And script_1.py calls script_2.py, which in turn calls script_3.py, __file__ within script_3.py will hold the path to script_3.py.

Additional Considerations:

In certain cases, you may encounter symbolic links or aliases that represent the current script. To obtain the actual target of the script, you can use the os.path.realpath function:

import os

os.path.realpath(__file__)

This will return the absolute path of the file, eliminating any symbolic links or aliases.

The above is the detailed content of How to Programmatically Get the Current Python Script's Path and Name?. For more information, please follow other related articles on the PHP Chinese website!