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How do I create a temporary directory in Python?

python
tempfile
contextlib
pathlib
Anton ShumikhinbyAnton Shumikhin·Feb 12, 2025
TLDR

Create a self-cleaning temporary directory with tempfile.TemporaryDirectory():

import tempfile with tempfile.TemporaryDirectory() as temp_dir: print('Temp dir:', temp_dir) # Do magic here, temp_dir disappears afterwards

After use, this directory will disappear, offering no-trace storage like a magician's trick! 🎩✨

Additional ways to control and secure temporary directories

Yes, there's more! With Python, you have additional ways to create temporary directories, from handling manual cleanup to ensuring essential security.

Manual cleanup: The choice is yours

If you want to do a manual cleanup, here’s how to use tempfile.mkdtemp() and shutil.rmtree():

import tempfile import shutil temp_dir = tempfile.mkdtemp() print('Temp dir:', temp_dir) # Do things in the temp directory # Cleanup when you decide, not when Python decides shutil.rmtree(temp_dir)

Nice, isn’t it? Now you call the shots here, not Python!

Security: Yep, we’ve got that covered too!

Use tempfile.mkdtemp() to securely create a temp directory and use shutil.rmtree() for removing it. But remember, exceptions are the party crashers. So, handle them:

import tempfile import shutil import os try: temp_dir = tempfile.mkdtemp() # Perform operations in temp_dir finally: shutil.rmtree(temp_dir) # Cleanup crew to the rescue

Switching directories: Home is where your temp_dir is

With os.chdir(), switch to your temporary directory within the context manager:

import tempfile import os with tempfile.TemporaryDirectory() as temp_dir: os.chdir(temp_dir) # Now we're cooking in temp_dir kitchen

And no dirty dishes left behind! The context manager will clean everything up.

You're not limited to the basics. Python offers advanced usage options with contextlib, pathlib, and even preventive error handling.

Making your own context manager

Want to roll your context manager? You can with contextlib. It works together with tempfile.mkdtemp() for flexibility:

import os import tempfile from contextlib import contextmanager import shutil @contextmanager def custom_temp_directory(): dir_path = tempfile.mkdtemp() try: yield dir_path finally: shutil.rmtree(dir_path) with custom_temp_directory() as temp_dir: # Party in the custom temp_dir

Now you're not just a Pythonista, you're a maestro!

Using pathlib for paths

The pathlib module comes as a new, cool kid on the block for handling filesystem paths. So, meet your new friend:

from pathlib import Path import tempfile with tempfile.TemporaryDirectory() as temp_dir: temp_path = Path(temp_dir) # Meet the power of slash operator file_path = temp_path / 'myfile.txt' # Continue operations here

Pathlib makes Python coding feel like a cool music jamming session. 🎸

Preventing ResourceWarning: Safety first!

Let's put on our safety helmets here and prevent ResourceWarning in Python's unittest with proper cleanup in the teardown methods:

import unittest import tempfile class MyTestCase(unittest.TestCase): def setUp(self): self.temp_dir = tempfile.TemporaryDirectory() def tearDown(self): self.temp_dir.cleanup() # Cleanup crew at your service! def test_something(self): # Test something here