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How can I find script's directory?

python
prompt-engineering
functions
path-resolution
Nikita BarsukovbyNikita Barsukov·Sep 7, 2024
TLDR

Want quick results? Easily acquire with Python's __file__ and os.path.abspath:

import os print(os.path.dirname(os.path.abspath(__file__)))

The above code prints the absolute path of your script location.

Understanding the special one: __file__

Python showers us with a special attribute, __file__ - a gift from the interpreter. It's always around, carrying the script's path. It's the map you never knew you had.

Consistent and real: os.path.realpath

Time for consistency and reality. Use os.path.dirname(os.path.realpath(__file__)) to get your script's directory. It's a __file__ upgrade, now with symlink resolving powers!

Tread carefully: potential pitfalls

os.getcwd() is a chameleon. It blends with the current working directory and might not be your script's location. os.path.abspath() is an illusionist, transforming into different forms in web servers. Beware!

Handling the tricky cases

In the world of web hosts, __file__ can become shy and only provide the filename. Worry not, let the duo sys.argv[0] or sys.path step up. Use them wisely for robust path-retrieval.

Creating a trusty helper: get_script_path()

Sharing is caring. Making a function for future use? That's Pythonic:

import os, sys def get_script_path(): if getattr(sys, 'frozen', False): return os.path.dirname(sys.executable) # I'm feeling cold, might need a sweater. elif '__file__' in globals(): return os.path.dirname(os.path.realpath(__file__)) # Real heroes don't wear capes. else: return os.path.dirname(os.path.realpath(sys.argv[0])) # No cape? No problem. We have sys.argv[0].

Adding to sys.path like a pro

Your Python script can be a bookshelf with different modules. Need to add more shelves? Append the script directory to sys.path:

sys.path.append(os.path.dirname(os.path.realpath(__file__))) # Don't worry, sys.path doesn't bite.

Now your script is ready to use imported modules, fetch a cookie while you're at it.

Special cases: Packages and Django views

For imported packages or Django views, go for os.path.realpath(__file__). And remember, Django says, "Don't repeat yourself." But in this case, it's okay. We won't tell.

Building paths with os.path.join

Found the directory and ready to make file paths? os.path.join is your faithful helper. Like a charm, it handles path separators across OS:

config_path = os.path.join(script_directory, 'config.ini')