How to Retrieve a Module's Path in Python

Using __file__ Attribute

You can retrieve a module's path using the __file__ attribute. For example,

#!/usr/bin/python3

# Import module
import os

print(os.__file__)

/usr/local/lib/python3.10/os.py

However, there is an important caveat, which is that __file__ does NOT exist if you are running the module on its own.

Using inspect Module

The Path.resolve() method returns the name of the (text or binary) file in which an object was defined. This will fail with a TypeError if the object is a built-in module, class, or function.

#!/usr/bin/python3

# Import module
import os
import inspect

print(inspect.getfile(os))

/usr/local/lib/python3.10/os.py